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Don's Directory: Company Index

0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z  

642 company listings start with O.

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O&B Tank Co., Inc.

Darrouzett, TX location has 1 key person listed in Mid-Continent Edition

O&D Manufacturing, Inc.

White Oak, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

O'Brien Energy Co.

Shreveport, LA location has 5 key people listed in North Texas/Ark-La-Tex Edition

Shreveport, LA location has 3 key people listed in Mid-Continent Edition

Shreveport, LA location has 3 key people listed in NorthEast Edition

Shreveport, LA location has 3 key people listed in South Texas/Eagle Ford Edition

O'Brien Energy Resources Corp.

Portsmouth, NH location has 2 key people listed in Mountain States Edition

O'Brien Oil Corp.

Guthrie, OK location has 3 key people listed in Mid-Continent Edition

O'Brien Oilfield Service, LLC

Belfield, ND location has 1 key person listed in Mountain States Edition

O'Brien, Ernest O.

Dallas, TX location is in North Texas/Ark-La-Tex Edition

O'Brien, Mike

Midland, TX location is in Permian Basin Edition

O'Brien, Paul F., Jr., Family, LLC

Shreveport, LA location has 5 key people listed in North Texas/Ark-La-Tex Edition

O'Connell, James F.

Amarillo, TX location is in Mid-Continent Edition

O'Connor & Hewitt, Ltd.

Victoria, TX location has 1 key person listed in South Texas/Eagle Ford Edition

O'Day Tank & Steel

Fargo, ND location has 1 key person listed in Mountain States Edition

Minot, ND location is in Mountain States Edition

O'Donnell, Bill C.

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

O'Driscoll Consulting Service LLC

Buffalo, WY location has 1 key person listed in Mountain States Edition

O'Neal Oil and Gas

Fort Worth, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

O'Neal Oil Co.

Nocona, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

O'Neal Resources Corp.

Denver, CO location has 1 key person listed in Mountain States Edition

O'Neill Properties, Ltd.

Midland, TX location has 4 key people listed in Permian Basin Edition

O'Rourke Petroleum

Fort Worth, TX location is in North Texas/Ark-La-Tex Edition

Houston, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Tyler, TX location is in North Texas/Ark-La-Tex Edition

O'Ryan Oil & Gas

Odessa, TX location has 1 key person listed in Permian Basin Edition

O'S Power Tong Service, Inc.

Waynesburg, OH location has 1 key person listed in NorthEast Edition

O'Tool Oil & Gas, LLC

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Dallas, TX location has 1 key person listed in South Texas/Eagle Ford Edition

O'Toole Exploration, Inc.

Plentywood, MT location has 3 key people listed in Mountain States Edition

O-K Bit Service, Inc

Tonkawa, OK location has 3 key people listed in Mid-Continent Edition

O-Tex Oil & Gas

Longview, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

O-Tex Pumping, LLC

Fairview, OK location has 2 key people listed in Mid-Continent Edition

Oklahoma City, OK location has 2 key people listed in Mid-Continent Edition

Wynnewood, OK location has 2 key people listed in Mid-Continent Edition

Fenelton, PA location has 3 key people listed in NorthEast Edition

Muncy Valley, PA location has 2 key people listed in NorthEast Edition

Fort Worth, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Midland, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Midland, TX location has 1 key person listed in Mid-Continent Edition

Midland, TX location has 4 key people listed in Permian Basin Edition

Midland, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Midland, TX location has 2 key people listed in Mid-Continent Edition

Midland, TX location has 2 key people listed in NorthEast Edition

Midland, TX location has 2 key people listed in South Texas/Eagle Ford Edition

Midland, TX location has 2 key people listed in Permian Basin Edition

Pampa, TX location has 1 key person listed in Mid-Continent Edition

Pleasanton, TX location has 2 key people listed in South Texas/Eagle Ford Edition

The Woodlands, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

The Woodlands, TX location has 2 key people listed in Mid-Continent Edition

The Woodlands, TX location has 2 key people listed in NorthEast Edition

The Woodlands, TX location has 2 key people listed in South Texas/Eagle Ford Edition

The Woodlands, TX location has 2 key people listed in Permian Basin Edition

O.C.P. Warehouse

Oil City, PA location has 1 key person listed in NorthEast Edition

O.G.O. Refining

Luling, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Luling, TX location has 1 key person listed in South Texas/Eagle Ford Edition

O.I.L. Energy Corp.

Traverse City, MI location has 2 key people listed in NorthEast Edition

O.J. Oil Corporation

Olney, IL location has 1 key person listed in NorthEast Edition

O.T.G. Marketing, LLC

Rolling Meadows, IL location has 1 key person listed in NorthEast Edition

Oak Creek Homes

Fort Worth, TX location is in North Texas/Ark-La-Tex Edition

Lancaster, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Oakdale Gas Processing, LLC

La Veta, CO location has 1 key person listed in Mountain States Edition

Oakland Exploration, LLC

Mount Pleasant, MI location has 1 key person listed in NorthEast Edition

Oakland Petroleum Operating Co. Inc.

Tulsa, OK location has 4 key people listed in North Texas/Ark-La-Tex Edition

Tulsa, OK location has 4 key people listed in Mid-Continent Edition

Oakridge Energy Inc.

Wichita Falls, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oakridge Engineering, P.C.

Rochester, NY location has 1 key person listed in NorthEast Edition

Oaks Disposal Services, LLC

Glendive, MT location has 1 key person listed in Mountain States Edition

Lindsay, MT location is in Mountain States Edition

Oaktree Oil Co.

Albany, TX location is in North Texas/Ark-La-Tex Edition

Oasis Petroleum LLC

Williston, ND location has 3 key people listed in Mountain States Edition

Houston, TX location has 8 key people listed in Mountain States Edition

Oasis Transportation & Marketing Corp.

Midland, TX location has 1 key person listed in Permian Basin Edition

Oasis Weed Control

Odessa, TX location has 1 key person listed in Permian Basin Edition

Oates, John, Co., Inc.

Stinnett, TX location has 1 key person listed in Mid-Continent Edition

Obele Operating Co., LLC

Sedona, AZ location has 1 key person listed in Mountain States Edition

Sedona, AZ location has 1 key person listed in Mid-Continent Edition

Obering, William, Companies

Greenwood Village, CO location has 1 key person listed in Mountain States Edition

Obermiller, Paul J., Oil & Gas

Creston, OH location is in NorthEast Edition

Oblaen Resources, LLC

Wallis, TX location has 3 key people listed in South Texas/Eagle Ford Edition

Obourn, J. L., Jr., & Co.

Littleton, CO location has 1 key person listed in Mountain States Edition

Occidental Oil & Gas Corp.

Gardner, CO location has 1 key person listed in Mountain States Edition

Grand Junction, CO location has 8 key people listed in Mountain States Edition

Dickinson, ND location has 4 key people listed in Mountain States Edition

Guymon, OK location has 1 key person listed in Mid-Continent Edition

Houston, TX location has 8 key people listed in Mountain States Edition

Houston, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Houston, TX location has 4 key people listed in Mid-Continent Edition

Houston, TX location has 3 key people listed in South Texas/Eagle Ford Edition

Houston, TX location has 4 key people listed in Permian Basin Edition

Midland, TX location is in Permian Basin Edition

OceanTec Electronics

Bastrop, TX location has 1 key person listed in South Texas/Eagle Ford Edition

OCECO

Tiffin, OH location has 1 key person listed in NorthEast Edition

OCV Control Valves

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

OD Rentals, Inc.

Odessa, TX location has 4 key people listed in Permian Basin Edition

Oden & Associates, LLC.

Shreveport, LA location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oden, F.C., Painting & Sandblasting

Perry, OK location has 1 key person listed in Mid-Continent Edition

Oder, R. B., Construction Co.

Gladewater, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Odessa Babbitt Bearing Co.

Odessa, TX location has 2 key people listed in Permian Basin Edition

Odessa Oil Investment Co., Inc.

Odessa, TX location has 1 key person listed in Permian Basin Edition

Odessa Packer Service, Inc.

Odessa, TX location has 2 key people listed in Permian Basin Edition

Odessa Pumps

Flora Vista, NM location has 1 key person listed in Mountain States Edition

Hobbs, NM location is in Permian Basin Edition

Amarillo, TX location is in Mid-Continent Edition

Boerne, TX location is in South Texas/Eagle Ford Edition

Corpus Christi, TX location is in South Texas/Eagle Ford Edition

Irving, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Irving, TX location has 1 key person listed in Mid-Continent Edition

Irving, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Midland, TX location has 1 key person listed in Mountain States Edition

Midland, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Midland, TX location has 1 key person listed in Mid-Continent Edition

Midland, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Midland, TX location has 1 key person listed in Permian Basin Edition

Palestine, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Pharr, TX location is in South Texas/Eagle Ford Edition

Odessa Separator, Inc.

Odessa, TX location has 2 key people listed in Permian Basin Edition

Odessa Sign Solution, LLC

Odessa, TX location has 1 key person listed in Permian Basin Edition

Odum Machine & Tool, Inc.

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

Odum Oil & Gas Co.

Boulder, CO location has 1 key person listed in Mountain States Edition

Odyssey Exploration, Inc.

Denver, CO location has 2 key people listed in Mountain States Edition

Oedekoven Excavating & Construction

Gillette, WY location has 1 key person listed in Mountain States Edition

Oedekoven Water & Hot Oil, Inc.

Recluse, WY location has 2 key people listed in Mountain States Edition

Oedekoven Well Service, LLC

Gillette, WY location has 1 key person listed in Mountain States Edition

OEMic, Inc.

Houston, TX location is in South Texas/Eagle Ford Edition

Houston, TX location is in Permian Basin Edition

Midland, TX location is in Permian Basin Edition

Oester Trucking, Inc.

Salisbury, PA location has 1 key person listed in NorthEast Edition

Offen Petroleum

Commerce City, CO location has 1 key person listed in Mountain States Edition

Offenhauser Oil & Gas

Wichita Falls, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Office of Natural Resources Revenue

Denver, CO location is in Mountain States Edition

Washington, DC location is in Mountain States Edition

Washington, DC location is in North Texas/Ark-La-Tex Edition

Washington, DC location is in Mid-Continent Edition

Washington, DC location is in NorthEast Edition

Washington, DC location is in South Texas/Eagle Ford Edition

Washington, DC location is in Permian Basin Edition

Farmington, NM location is in Mountain States Edition

Oklahoma City, OK location is in Mid-Continent Edition

Tulsa, OK location is in Mid-Continent Edition

Farmers Branch, TX location is in North Texas/Ark-La-Tex Edition

Houston, TX location is in South Texas/Eagle Ford Edition

Houston, TX location is in Permian Basin Edition

Offshore Energy Services

Lafayette, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

Lafayette, LA location has 1 key person listed in Mid-Continent Edition

Lafayette, LA location has 1 key person listed in South Texas/Eagle Ford Edition

Oil City, LA location is in North Texas/Ark-La-Tex Edition

Weatherford, OK location is in Mid-Continent Edition

George West, TX location has 1 key person listed in South Texas/Eagle Ford Edition

OFM Pump Inc.

Odessa, TX location has 5 key people listed in Permian Basin Edition

OFP Services, Inc.

Kimball, NE location has 3 key people listed in Mountain States Edition

OFT Construction

Kirtland, NM location has 1 key person listed in Mountain States Edition

Oftedahl Logging Heavy Hauling

Kalispell, MT location has 2 key people listed in Mountain States Edition

OG&C, LLC

Yukon, OK location is in Mid-Continent Edition

Ogden Resources Corp.

Bryan, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Bryan, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Bryan, TX location has 1 key person listed in Permian Basin Edition

OGI, Inc.

Pagosa Springs, CO location has 1 key person listed in Mountain States Edition

OGIA Insurance Agency

Grove City, OH location has 2 key people listed in NorthEast Edition

Ogilvie, Bruce L., Inc.

Tyler, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

OGP Energy

Oklahoma City, OK location has 2 key people listed in Mid-Continent Edition

OGP Operating, Inc.

Dallas, TX location has 4 key people listed in North Texas/Ark-La-Tex Edition

Dallas, TX location has 3 key people listed in Mid-Continent Edition

Dallas, TX location has 2 key people listed in Permian Basin Edition

Ogre Systems, Inc.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Ogsys

Fort Worth, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

OGTrades

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

OGX Resources LLC

Midland, TX location is in Permian Basin Edition

Oheim Company, The

Amarillo, TX location has 1 key person listed in Mid-Continent Edition

Ohio Bureau of Workers' Compensation

REGIONAL OFFICES, location is in NorthEast Edition

Columbus, OH location has 3 key people listed in NorthEast Edition

Ohio CAT

Richwood, KY location is in NorthEast Edition

Bolivar, OH location is in NorthEast Edition

Broadview Hts, OH location has 1 key person listed in NorthEast Edition

Broadview Hts, OH location is in NorthEast Edition

Cadiz, OH location is in NorthEast Edition

Canton, OH location is in NorthEast Edition

Columbus, OH location has 1 key person listed in NorthEast Edition

North Canton, OH location is in NorthEast Edition

Oakwood Vaillage, OH location is in NorthEast Edition

Perrysburg, OH location is in NorthEast Edition

Sharonville, OH location is in NorthEast Edition

Toledo, OH location is in NorthEast Edition

Youngstown, OH location is in NorthEast Edition

Zanesville, OH location is in NorthEast Edition

Ohio Commerce Center

Lordstown, OH location has 1 key person listed in NorthEast Edition

Ohio Department of Natural Resources

Columbus, OH location has 5 key people listed in NorthEast Edition

Ohio Dept. of Natural Resources

Athens, OH location is in NorthEast Edition

Cambridge, OH location has 14 key people listed in NorthEast Edition

Columbus, OH location has 1 key person listed in NorthEast Edition

Jackson, OH location has 24 key people listed in NorthEast Edition

New Philadelphia, OH location has 15 key people listed in NorthEast Edition

Salem, OH location has 2 key people listed in NorthEast Edition

Uniontown, OH location has 23 key people listed in NorthEast Edition

Ohio Energy Assets, Inc.

Laurelville, OH location has 2 key people listed in NorthEast Edition

Ohio Energy Resource Alliance

Granville, OH location has 2 key people listed in NorthEast Edition

Ohio Gas Association

Dublin, OH location has 11 key people listed in NorthEast Edition

Ohio Geological Society

Columbus, OH location has 4 key people listed in NorthEast Edition

Ohio Horizontal Drilling Assocation

Mantua, OH location has 5 key people listed in NorthEast Edition

Ohio Kentucky Oil Corp.

Lexington, KY location has 3 key people listed in NorthEast Edition

Ohio Natural Gas Services, Inc.

Zanesville, OH location has 1 key person listed in NorthEast Edition

Ohio Oil & Gas Associates

Junction City, OH location has 1 key person listed in NorthEast Edition

Ohio Oil & Gas Association (OOGA)

Granville, OH location has 12 key people listed in NorthEast Edition

Ohio Oil Gathering Corp.

Frazeysburg, OH location has 2 key people listed in NorthEast Edition

Ohio Petroleum Council

Columbus, OH location has 1 key person listed in NorthEast Edition

Ohio Pipe & Supply Co., Inc.

Cleveland, OH location has 1 key person listed in NorthEast Edition

Ohio Pump & Supply

Logan, OH location has 1 key person listed in NorthEast Edition

Ohio Valley Energy Systems, Corp.

Austintown, OH location has 2 key people listed in NorthEast Edition

Ohio Valley Hub

Evansville, IN location has 1 key person listed in NorthEast Edition

Ohio Well Management, Inc.

Fowler, OH location has 2 key people listed in NorthEast Edition

Ohio West Virginia Excavating

Powhatan Point, OH location has 4 key people listed in NorthEast Edition

OHM Operating, Inc.

Borger, TX location has 2 key people listed in Mid-Continent Edition

Ohmart, Walter A., Jr.

Denver, CO location is in Mountain States Edition

Oienschilke, Sharon

Alamo, ND location is in Mountain States Edition

Oil & Gas Advisors, Inc.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil & Gas Asset Clearinghouse, The

Edmond, OK location has 1 key person listed in Mid-Continent Edition

Flower Mound, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Houston, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Houston, TX location has 1 key person listed in Mid-Continent Edition

Oil & Gas Business Services

Okmulgee, OK location has 1 key person listed in Mid-Continent Edition

Oil & Gas Business Services

Okmulgee, OK location has 1 key person listed in Mid-Continent Edition

Oil & Gas Business Solutions, Inc.

Dallas, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Oil & Gas Consultant, Inc.

Midland, TX location is in Permian Basin Edition

Oil & Gas Equipment

Flora Vista, NM location has 2 key people listed in Mountain States Edition

Vernal, UT location has 1 key person listed in Mountain States Edition

Oil & Gas Equipment Consulting

Casper, WY location has 2 key people listed in Mountain States Edition

Oil & Gas Information Systems Inc.

Fort Worth, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oil & Gas Investment Evaluations

Amarillo, TX location has 1 key person listed in Mid-Continent Edition

Oil & Gas Management

Mount Pleasant, PA location has 2 key people listed in NorthEast Edition

Oil & Gas Properties

Midland, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Midland, TX location has 1 key person listed in Permian Basin Edition

Oil & Gas Safety Supply

St. Clairsville, OH location is in NorthEast Edition

Washington, PA location has 1 key person listed in NorthEast Edition

Oil & Gas Systems Design Co.,

Casper, WY location has 2 key people listed in Mountain States Edition

Oil & Gas Title Abstracting

Washington, PA location has 2 key people listed in NorthEast Edition

Oil 2 Holdings, Inc.

Dallas, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oil America Group Corp.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Capital Land & Exploration

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

Oil Center Research, LLC

Lafayette, LA location has 5 key people listed in North Texas/Ark-La-Tex Edition

Lafayette, LA location has 5 key people listed in Mid-Continent Edition

Lafayette, LA location has 5 key people listed in South Texas/Eagle Ford Edition

Lafayette, LA location has 3 key people listed in Permian Basin Edition

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Midland, TX location has 1 key person listed in Permian Basin Edition

Oil City Hotshot, LLC

Mills, WY location has 2 key people listed in Mountain States Edition

Oil City Pump Shop & Supply

Newcastle, WY location is in Mountain States Edition

Oil City Supply Co.

Oil City, LA location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oil City Supply, Inc.

Graham, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Country Inspection Inc.

Midland, TX location is in Permian Basin Edition

Oil Country Pipe & Supply, LLC

Enid, OK location has 1 key person listed in Mid-Continent Edition

Oil Creek Plastics, Inc.

Titusville, PA location has 7 key people listed in NorthEast Edition

Oil Creek Production Co.

Prague, OK location has 3 key people listed in Mid-Continent Edition

Oil Enterprises

Logan, OH location has 1 key person listed in NorthEast Edition

Oil Field Components, Inc.

Houston, TX location has 4 key people listed in South Texas/Eagle Ford Edition

Oil Field Packer Service

Eunice, NM location is in Permian Basin Edition

Oil Field Service Co., Inc.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Field Tubulars and Supply Co.

Englewood, CO location has 1 key person listed in Mountain States Edition

Ray, ND location has 1 key person listed in Mountain States Edition

Oil Field Warriors,LLC

Kalispell, MT location has 1 key person listed in Mountain States Edition

Oil Fields Pump Specialist & Supply

Woodward, OK location has 1 key person listed in Mid-Continent Edition

Oil Flats Energy

Ft. Stockton, TX location is in Permian Basin Edition

Kilgore, TX location is in North Texas/Ark-La-Tex Edition

Midland, TX location has 4 key people listed in North Texas/Ark-La-Tex Edition

Midland, TX location has 4 key people listed in Permian Basin Edition

Oil Information Library

Wichita Falls, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Information Library of Ft. Worth

Fort Worth, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Lift Technology, Inc.

Calgary, AB location is in Mountain States Edition

Calgary, AB location is in Permian Basin Edition

Farmington, NM location has 1 key person listed in Mountain States Edition

Odessa, TX location has 2 key people listed in Permian Basin Edition

Oil Management Corp.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Marketers, Inc.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Patch Chaplains

Oklahoma City, OK location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oklahoma City, OK location has 2 key people listed in Mid-Continent Edition

Oil Patch Petroleum

Alice, TX location is in South Texas/Eagle Ford Edition

Bishop, TX location is in South Texas/Eagle Ford Edition

Carrizo Springs, TX location is in South Texas/Eagle Ford Edition

Corpus Christi, TX location is in South Texas/Eagle Ford Edition

Elmendorf, TX location is in South Texas/Eagle Ford Edition

Laredo, TX location is in South Texas/Eagle Ford Edition

Pharr, TX location is in South Texas/Eagle Ford Edition

Victoria, TX location is in South Texas/Eagle Ford Edition

Oil Patch Pipe & Supply Inc.

Kilgore, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Patch Power

Williston, ND location has 1 key person listed in Mountain States Edition

Greenville, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Greenville, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Midland, TX location has 1 key person listed in Permian Basin Edition

Oil Patch Rental Services, Inc.

Denver, CO location has 1 key person listed in Mountain States Edition

Victoria, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Oil Patch Transportation,Inc.

Pearland, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Oil Pool, Inc.

Broken Arrow, OK location has 1 key person listed in Mid-Continent Edition

Oil Producers Association

Springfield, IL location is in NorthEast Edition

Oil Producers, Inc. of Kansas

Wichita, KS location has 2 key people listed in Mid-Continent Edition

Oil Property Investments, LLC

Denver, CO location has 1 key person listed in Mountain States Edition

Oil Quest Resources, Inc.

Arvada, CO location has 1 key person listed in Mountain States Edition

Oil Region Alliance

Oil City, PA location has 1 key person listed in NorthEast Edition

Oil Report & Gas Services, Inc.

Hobbs, NM location has 2 key people listed in Permian Basin Edition

Oil Rock Energy, Inc.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oil Service, Inc.

Pittsburgh, PA location has 3 key people listed in NorthEast Edition

Oil States Energy Services

Conway, AR location is in Mid-Continent Edition

Aurora, CO location has 1 key person listed in Mountain States Edition

Berthoud, CO location has 1 key person listed in Mountain States Edition

Pratt, KS location is in Mid-Continent Edition

Shreveport, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

Dickinson, ND location is in Mountain States Edition

Williston, ND location has 3 key people listed in Mountain States Edition

Artesia, NM location is in Permian Basin Edition

Cameron, OK location is in Mid-Continent Edition

Elk City, OK location is in Mid-Continent Edition

Elk City, OK location is in Mid-Continent Edition

Krebs, OK location is in Mid-Continent Edition

Oklahoma City, OK location is in Mid-Continent Edition

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Canonsburg, PA location is in NorthEast Edition

Clearfield, PA location is in NorthEast Edition

Watsontown, PA location is in NorthEast Edition

Alice, TX location is in South Texas/Eagle Ford Edition

Alvin, TX location is in South Texas/Eagle Ford Edition

Alvin, TX location is in Permian Basin Edition

Bridgeport, TX location is in North Texas/Ark-La-Tex Edition

Cleburne, TX location is in North Texas/Ark-La-Tex Edition

Edinburg, TX location is in South Texas/Eagle Ford Edition

Fairfield, TX location is in North Texas/Ark-La-Tex Edition

Houston, TX location is in South Texas/Eagle Ford Edition

Houston, TX location has 1 key person listed in Mountain States Edition

Houston, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Houston, TX location has 1 key person listed in Mid-Continent Edition

Houston, TX location has 1 key person listed in NorthEast Edition

Houston, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Houston, TX location has 1 key person listed in Permian Basin Edition

Kilgore, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Kilgore, TX location is in North Texas/Ark-La-Tex Edition

Midland, TX location is in Permian Basin Edition

Midland, TX location is in Permian Basin Edition

Monahans, TX location is in Permian Basin Edition

Nacogdoches, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Orange Grove, TX location is in South Texas/Eagle Ford Edition

Perryton, TX location has 1 key person listed in Mid-Continent Edition

Rosharon, TX location is in South Texas/Eagle Ford Edition

San Angelo, TX location is in Permian Basin Edition

Seguin, TX location is in South Texas/Eagle Ford Edition

Tyler, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Victoria, TX location is in South Texas/Eagle Ford Edition

Vernal, UT location has 3 key people listed in Mountain States Edition

Buckhannon, WV location is in NorthEast Edition

Paden City, WV location is in NorthEast Edition

Casper, WY location is in Mountain States Edition

Rock Springs, WY location has 4 key people listed in Mountain States Edition

Oil States Industries, Inc.

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

Arlington, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Arlington, TX location has 3 key people listed in Mid-Continent Edition

Lampasas, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oil States Industries, Inc.

Oklahoma City, OK location has 6 key people listed in Mid-Continent Edition

Oil Trades Supply Corp.

Bellerose, NY location has 1 key person listed in NorthEast Edition

Oil Trax USA

Minot, ND location has 2 key people listed in Mountain States Edition

Oil Valley Energy, LLC

Bowling Green, KY location has 1 key person listed in NorthEast Edition

Oil Well Perforators, Inc.

Englewood, CO location is in Mountain States Edition

Mills, WY location has 4 key people listed in Mountain States Edition

Riverton, WY location has 3 key people listed in Mountain States Edition

Oil Works, Inc

Odessa, TX location is in Permian Basin Edition

Oil-Law Records Corp.

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Oilfield Anchor Co.

Palestine, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oilfield Class Transports, Inc.

Roosevelt, UT location has 2 key people listed in Mountain States Edition

Oilfield Devices, Inc.

Richardson, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Richardson, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Oilfield Disposal Services

Worland, WY location has 1 key person listed in Mountain States Edition

Oilfield Engine & Equipment, LLC

Mills, WY location has 1 key person listed in Mountain States Edition

Oilfield Equipment Marketing, Inc.

San Antonio, TX location is in South Texas/Eagle Ford Edition

Oilfield Equipment Sales

Gainesville, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oilfield Fishing & Rental, LLC

Andrews, TX location has 2 key people listed in Permian Basin Edition

Midland, TX location has 5 key people listed in Permian Basin Edition

Oilfield Heavy Haulers, LLC

Odessa, TX location has 1 key person listed in Permian Basin Edition

Victoria, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Victoria, TX location has 1 key person listed in Permian Basin Edition

Oilfield Improvements, Inc.

Broken Arrow, OK location has 3 key people listed in Mid-Continent Edition

Broken Arrow, OK location has 3 key people listed in Permian Basin Edition

OilField Industrial Supply Corp.

Shreveport, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

San Antonio, TX location is in South Texas/Eagle Ford Edition

Oilfield Instrumentation (OI)

Conway, AR location has 1 key person listed in Mid-Continent Edition

Ferriday, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

Lafayette, LA location has 11 key people listed in North Texas/Ark-La-Tex Edition

Lafayette, LA location has 8 key people listed in Mid-Continent Edition

Lafayette, LA location has 9 key people listed in South Texas/Eagle Ford Edition

Shreveport, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

Victoria, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Oilfield Integrators

Minot, ND location is in Mountain States Edition

Oilfield Machine

Gillette, WY location has 1 key person listed in Mountain States Edition

Oilfield Manufacturers Warehouse, Inc.

Great Bend, KS location has 3 key people listed in Mid-Continent Edition

Oilfield Mud & Chemical Services

Ft Worth, TX location is in North Texas/Ark-La-Tex Edition

Odessa, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Odessa, TX location has 2 key people listed in Permian Basin Edition

Oilfield Research, Inc.

Evansville, IN location has 1 key person listed in NorthEast Edition

Oilfield Sales

Tyler, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oilfield Salvage & Service Co.

Littleton, CO location has 3 key people listed in Mountain States Edition

Oilfield Service Co.

Mineral Wells, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oilfield Services, LLC

Bossier City, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

Williston, ND location has 2 key people listed in Mountain States Edition

Houston, TX location has 2 key people listed in Mountain States Edition

Houston, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Houston, TX location has 2 key people listed in Mid-Continent Edition

Perryton, TX location has 1 key person listed in Mid-Continent Edition

Oilfield Solutions, Inc.

Midland, TX location has 3 key people listed in Permian Basin Edition

Oilfield Specialty Distributors

Oklahoma City, OK location has 6 key people listed in Mid-Continent Edition

Oilfield Support Services

New Town, ND location has 2 key people listed in Mountain States Edition

Oilfield Tools, Inc.

Traverse City, MI location has 1 key person listed in NorthEast Edition

Oilfield Trucking Solutions

Canton, OH location has 1 key person listed in NorthEast Edition

Enid, OK location is in Mid-Continent Edition

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma City, OK location has 1 key person listed in NorthEast Edition

Oklahoma City, OK location has 1 key person listed in South Texas/Eagle Ford Edition

Sayre, PA location is in NorthEast Edition

Pearsall, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Oilpatch Machine Tool, Inc.

Mount Pleasant, MI location has 3 key people listed in NorthEast Edition

Oiltanking

Joliet, IL location is in NorthEast Edition

Houston, TX location has 2 key people listed in NorthEast Edition

Houston, TX location has 4 key people listed in South Texas/Eagle Ford Edition

Oilwell Cementers, Inc.

Cushing, OK location has 1 key person listed in Mid-Continent Edition

Oilwell Equipment Co.

Sidney, NE location has 1 key person listed in Mountain States Edition

Oilwell Guidance LLC

Brighton, CO location is in Mountain States Edition

Houston, TX location has 2 key people listed in Mountain States Edition

Oilwell Operators, Inc

Pampa, TX location has 4 key people listed in Mid-Continent Edition

OJ Rental, Inc.

Corpus Christi, TX location has 2 key people listed in South Texas/Eagle Ford Edition

OK City Assoc.-Professional Landmen

Oklahoma City, OK location has 2 key people listed in Mid-Continent Edition

OK Dept. of Environmental Quality

Oklahoma City, OK location is in Mid-Continent Edition

OK Dept. of Labor, OSHA Division

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

OK Energy Resources Board (OERB)

Oklahoma City, OK location has 2 key people listed in Mid-Continent Edition

OK Mineral Owners Assoc. (OMOA)

Chickasha, OK location is in Mid-Continent Edition

OK Plunger Service

Drumright, OK location has 1 key person listed in Mid-Continent Edition

OK State Bureau of Investigation (OSBI)

Oklahoma City, OK location is in Mid-Continent Edition

OK Tank Trucks, Inc.

Skiatook, OK location is in Mid-Continent Edition

OK Truck & Trailer Sales, Inc.

Oklahoma City, OK location has 2 key people listed in Mid-Continent Edition

OKC Products, Inc.

Berthoud, CO location has 3 key people listed in Mountain States Edition

Okie Crude Co.

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

Oklaco Holding, LLC

Edmond, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma City Geological Society, Inc.

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma Corporation Commission

Ada, OK location has 12 key people listed in Mid-Continent Edition

Bristow, OK location has 14 key people listed in Mid-Continent Edition

Duncan, OK location has 13 key people listed in Mid-Continent Edition

Kingfisher, OK location has 15 key people listed in Mid-Continent Edition

Oklahoma City, OK location has 27 key people listed in Mid-Continent Edition

Oklahoma Crude, Inc.

Haskell, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma Energy, LLC

Skiatook, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma Environmental Services, Inc.

Enid, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma Exploration Co.

Dallas, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Dallas, TX location has 3 key people listed in Mid-Continent Edition

Oklahoma Geological Survey

Norman, OK location is in Mid-Continent Edition

Norman, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma Independent Petroleum Assoc

Oklahoma City, OK location has 3 key people listed in Mid-Continent Edition

Oklahoma Liquid Resources, Inc.

Owasso, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma Oil & Gas Management, Inc.

Oklahoma City, OK location has 3 key people listed in Mid-Continent Edition

Oklahoma Petroleum Allies, LLC

Ardmore, OK location is in North Texas/Ark-La-Tex Edition

Ardmore, OK location is in Mid-Continent Edition

Waxahachie, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Waxahachie, TX location has 1 key person listed in Mid-Continent Edition

Oklahoma Pipe Sales Inc.

Seminole, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma Rig Fabricators

Oklahoma City, OK location has 6 key people listed in Mid-Continent Edition

Oklahoma Royalty Co.

Edmond, OK location has 2 key people listed in Mid-Continent Edition

Oklahoma Sub-Surface Pump & Supply

Seminole, OK location has 2 key people listed in Mid-Continent Edition

Oklahoma Tax Commission

Oklahoma City, OK location has 5 key people listed in Mid-Continent Edition

Oklahoma Tool Co.

Drumright, OK location has 1 key person listed in Mid-Continent Edition

Pawhuska, OK location has 1 key person listed in Mid-Continent Edition

Seminole, OK location has 2 key people listed in Mid-Continent Edition

Oklahoma Well Data Library

Norman, OK location has 1 key person listed in Mid-Continent Edition

Okland Oil Co.

Oklahoma City, OK location has 6 key people listed in Mid-Continent Edition

Okonite Co., The

Denton, TX location is in North Texas/Ark-La-Tex Edition

OKSPCC.com

Broken Arrow, OK location has 1 key person listed in Mid-Continent Edition

OKT Resources Corp., LLC

Edmond, OK location has 3 key people listed in Mountain States Edition

Edmond, OK location has 3 key people listed in North Texas/Ark-La-Tex Edition

Edmond, OK location has 3 key people listed in Mid-Continent Edition

OKY Investments, Inc.

Edmond, OK location has 1 key person listed in Mid-Continent Edition

Old Mission Energy, LLC

Traverse City, MI location has 1 key person listed in NorthEast Edition

Old School Services, LLC

Odessa, TX location has 1 key person listed in Permian Basin Edition

Old South Oil Co.

Marietta, OH location has 1 key person listed in NorthEast Edition

OleBrook Directional Drilling Svs.

Cleburne, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Cleburne, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Oleksa and Associates

Akron, OH location has 1 key person listed in NorthEast Edition

Olenick, Steve, P.E.

Cody, WY location is in Mountain States Edition

Oler, John R., Inc.

Watonga, OK location has 1 key person listed in Mid-Continent Edition

Oleum Operating Co., LC

Longview, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oleum Societus, Inc.

Stamford, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Stamford, TX location has 1 key person listed in Permian Basin Edition

Oliphant Operating, Ltd, LLC

Tulsa, OK location is in Mid-Continent Edition

Olive Oil & Gas, Inc.

Oilton, OK location has 1 key person listed in Mid-Continent Edition

Oliver Wellsite Consulting

Bairoil, WY location has 1 key person listed in Mountain States Edition

Oliver, Dennis A., & Associates

Denver, CO location has 1 key person listed in Mountain States Edition

Oliver, Fred L.

Dallas, TX location is in North Texas/Ark-La-Tex Edition

Oliver, W. Courtney, Jr.

Zwolle, LA location is in North Texas/Ark-La-Tex Edition

Olney Hardware & Supply

Olney, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Olsen Energy, Inc.

Monahans, TX location is in Permian Basin Edition

San Antonio, TX location has 3 key people listed in South Texas/Eagle Ford Edition

San Antonio, TX location has 3 key people listed in Permian Basin Edition

Olsen Oil Field Specialty

Casper, WY location has 1 key person listed in Mountain States Edition

Olsen Welding & Machine, Inc.

Powell, WY location has 2 key people listed in Mountain States Edition

Olson Welding & Machine

Powell, WY location has 2 key people listed in Mountain States Edition

Olsson Associates

Golden, CO location has 3 key people listed in Mountain States Edition

Grand Junction, CO location has 2 key people listed in Mountain States Edition

Lincoln, NE location has 3 key people listed in Mountain States Edition

Oltmans, James

Evergreen, CO location is in Mountain States Edition

Olympia Oil, Inc.

Edmond, OK location has 1 key person listed in Mid-Continent Edition

Olympia Royalty, Ltd.

Dallas, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Olympic Exploration & Production Co.

Granbury, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

OMB Royalties, LLC

Denver, CO location has 2 key people listed in Mountain States Edition

Omega Cementing Co.

Apple Creek, OH location has 1 key person listed in NorthEast Edition

Omega Energy Corp.

Princeton, IN location has 3 key people listed in NorthEast Edition

Omega Evaluation Center/Safety Services

Tyler, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Omega Oil & Gas Services, Inc.

Abilene, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Omega Oilfield Service

Kilgore, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Omega Production Services, Inc.

Midland, TX location has 1 key person listed in Permian Basin Edition

Omega Treating Chemicals, Inc.

Eunice, NM location is in Permian Basin Edition

Midland, TX location has 4 key people listed in Permian Basin Edition

OMI Environmental Solutions

Belle Chasse, LA location has 5 key people listed in North Texas/Ark-La-Tex Edition

Belle Chasse, LA location has 5 key people listed in South Texas/Eagle Ford Edition

Shreveport, LA location is in North Texas/Ark-La-Tex Edition

Houston, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Longview, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Port Arthur, TX location has 1 key person listed in South Texas/Eagle Ford Edition

OMI, LP

Odessa, TX location has 2 key people listed in Permian Basin Edition

Omimex Canada, Ltd.

Cut Bank, MT location has 4 key people listed in Mountain States Edition

Omimex Resources Inc.

Wray, CO location has 2 key people listed in Mountain States Edition

Ludington, MI location has 2 key people listed in NorthEast Edition

Fort Worth, TX location has 1 key person listed in Mountain States Edition

Fort Worth, TX location has 5 key people listed in North Texas/Ark-La-Tex Edition

Fort Worth, TX location has 5 key people listed in NorthEast Edition

Omni Compressed Air, Ltd.

Midland, TX location has 4 key people listed in Permian Basin Edition

Omni Energy Services Corp.

Lafayette, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

Omni Industrial Solutions, LLC

Shreveport, LA location is in North Texas/Ark-La-Tex Edition

Shreveport, LA location is in Mid-Continent Edition

Shreveport, LA location is in South Texas/Eagle Ford Edition

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Longview, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

San Antonio, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Omni Management Systems

Williston, ND location has 1 key person listed in Mountain States Edition

Omni Materials, Inc.

Maysville, KY location has 5 key people listed in NorthEast Edition

Omni Oil & Gas, Inc.

Edmond, OK location has 1 key person listed in Mid-Continent Edition

Omni Oil & Gas, Inc.

San Antonio, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Omni Petroleum Corp.

Austin, TX location is in North Texas/Ark-La-Tex Edition

Austin, TX location is in South Texas/Eagle Ford Edition

Omni Valve

Muskogee, OK location has 1 key person listed in Mid-Continent Edition

Muskogee, OK location has 1 key person listed in NorthEast Edition

Muskogee, OK location has 1 key person listed in South Texas/Eagle Ford Edition

Bridgeport, PA location has 1 key person listed in NorthEast Edition

La Grange, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Omni Water Solutions

Austin, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Omnicon Technical Sales, Inc.

Arvada, CO location has 2 key people listed in Mountain States Edition

On & Offshore Quality Control Specialists

Austin, TX location has 4 key people listed in South Texas/Eagle Ford Edition

On Site Engineering

Traverse City, MI location has 1 key person listed in NorthEast Edition

On Site Field Supply

Punxsutawney, PA location has 1 key person listed in NorthEast Edition

Washington, PA location has 1 key person listed in NorthEast Edition

On Site Safety, Inc.

Silt, CO location has 1 key person listed in Mountain States Edition

Williston, ND location has 1 key person listed in Mountain States Edition

Conroe, TX location has 1 key person listed in Mountain States Edition

On-Site Petroleum Products

Brooklyn, NY location is in NorthEast Edition

Onda-Lay Pipe

Hobbs, NM location is in Permian Basin Edition

Mansfield, PA location is in NorthEast Edition

Midland, TX location has 1 key person listed in Permian Basin Edition

One AquaSource, Inc.

Waterville, OH location has 1 key person listed in NorthEast Edition

One Cypress Trucking, Inc.

San Antonio, TX location has 4 key people listed in North Texas/Ark-La-Tex Edition

San Antonio, TX location has 4 key people listed in South Texas/Eagle Ford Edition

One Oak

Coyanosa, TX location is in Permian Basin Edition

Midland, TX location is in Permian Basin Edition

One Source Investment Partners

Durango, CO location has 1 key person listed in Mountain States Edition

Durango, CO location has 1 key person listed in Mid-Continent Edition

One Source Transportation

Carlsbad, NM location has 1 key person listed in Permian Basin Edition

Andrews, TX location has 1 key person listed in Permian Basin Edition

Houston, TX location has 3 key people listed in South Texas/Eagle Ford Edition

Houston, TX location has 3 key people listed in Permian Basin Edition

Odessa, TX location has 1 key person listed in Permian Basin Edition

Pecos, TX location has 1 key person listed in Permian Basin Edition

Pleasanton, TX location has 1 key person listed in South Texas/Eagle Ford Edition

One Source, LLC

Hudson, CO location has 1 key person listed in Mountain States Edition

One Star Trucking, Ltd.

Midland, TX location has 2 key people listed in Permian Basin Edition

Oneida Energy Corp.

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

OneMap, Ltd.

Tyler, TX location is in North Texas/Ark-La-Tex Edition

ONEOK Field Services Co., LLC

Tulsa, OK location has 6 key people listed in Mountain States Edition

Tulsa, OK location has 9 key people listed in Mid-Continent Edition

ONEOK Gas Storage

Tulsa, OK location has 3 key people listed in Mid-Continent Edition

ONEOK Gas Transportation, LLC

Tulsa, OK location has 7 key people listed in Mid-Continent Edition

ONEOK Partners, LP

Tulsa, OK location is in Mountain States Edition

Tulsa, OK location has 7 key people listed in North Texas/Ark-La-Tex Edition

Tulsa, OK location has 15 key people listed in Mid-Continent Edition

ONEOK Rockies Midstream, LLC

Baker, MT location has 1 key person listed in Mountain States Edition

Sidney, MT location has 1 key person listed in Mountain States Edition

Lignite, ND location is in Mountain States Edition

Tulsa, OK location has 7 key people listed in Mountain States Edition

Tulsa, OK location has 4 key people listed in Mid-Continent Edition

Gillette, WY location has 1 key person listed in Mountain States Edition

Sheridan, WY location has 1 key person listed in Mountain States Edition

Oneok Westex Transmission, LP

Midland, TX location has 1 key person listed in Permian Basin Edition

ONEOK, Inc.

Downers Grove, IL location has 1 key person listed in NorthEast Edition

Tulsa, OK location has 15 key people listed in Mid-Continent Edition

Tulsa, OK location has 6 key people listed in NorthEast Edition

Oneway, LLC

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

Onsite Oil Tools Inc.

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Ratliff City, OK location has 2 key people listed in Mid-Continent Edition

Onsite Power, Inc.

Aurora, CO location has 1 key person listed in Mountain States Edition

Onsite Well Supervision

Yantis, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Onyx Contractors, LP

Midland, TX location has 4 key people listed in Permian Basin Edition

Onyx International Exploration, LLC

Glasgow, KY location has 2 key people listed in NorthEast Edition

Onyx Services Inc

New Caney, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

New Caney, TX location has 2 key people listed in South Texas/Eagle Ford Edition

New Caney, TX location has 2 key people listed in Permian Basin Edition

OOGEEP

Granville, OH location has 2 key people listed in NorthEast Edition

Oolite Energy Corp.

Amarillo, TX location has 2 key people listed in Mid-Continent Edition

OP Tanks

Ogden, UT location has 2 key people listed in Mountain States Edition

Opal Resources, LLC

Houston, TX location has 2 key people listed in Mid-Continent Edition

Houston, TX location has 2 key people listed in Permian Basin Edition

Opeco, Inc.

Searcy, AR location is in Mid-Continent Edition

Shreveport, LA location is in North Texas/Ark-La-Tex Edition

Healdton, OK location is in Mid-Continent Edition

Oklahoma City, OK location has 1 key person listed in North Texas/Ark-La-Tex Edition

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Perryton, TX location is in Mid-Continent Edition

Open & Closed Equipment, Inc.

Rosenberg, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Open Door Productions, Inc.

Muskogee, OK location is in Mid-Continent Edition

Okmulgee, OK location has 1 key person listed in Mid-Continent Edition

Open Flow Gas Supply Corp.

DuBois, PA location has 1 key person listed in NorthEast Edition

Open Range Access

Longmont, CO location has 1 key person listed in Mountain States Edition

Opfer Exploration, Inc.

Wheat Ridge, CO location has 1 key person listed in Mountain States Edition

Opfer Exploration, Inc.

Wheat Ridge, CO location has 1 key person listed in Mountain States Edition

OPON International, LLC

Denver, CO location has 3 key people listed in Mountain States Edition

Opperman, L. E.

Midland, TX location is in Permian Basin Edition

Opsal Energy, Inc.

Billings, MT location has 1 key person listed in Mountain States Edition

Opsco Energy Industries (USA), LTD

Denver, CO location is in Mountain States Edition

Denver, CO location is in South Texas/Eagle Ford Edition

Pleasanton, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Optibelt Corp. USA

Carol Stream, IL location is in NorthEast Edition

Carrolton, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Optiblend Industries, Inc.

Miles City, MT location has 1 key person listed in Mountain States Edition

Freeport, TX location is in Mountain States Edition

Freeport, TX location has 2 key people listed in South Texas/Eagle Ford Edition

Freeport, TX location has 2 key people listed in Permian Basin Edition

Midland, TX location has 1 key person listed in Permian Basin Edition

Optimal Value Energy

Midland, MI location has 1 key person listed in NorthEast Edition

OPW Fluid Transfer Group

West Chester, OH location has 1 key person listed in NorthEast Edition

Oracle Oil, LLC

Baton Rouge, LA location is in North Texas/Ark-La-Tex Edition

Oracle Resources, Ltd.

Addison, TX location has 3 key people listed in Mountain States Edition

Addison, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Addison, TX location has 3 key people listed in Mid-Continent Edition

Orand's Well Logging Service

Fairfield, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Orange Energy Consultants, LLP

Grapevine, TX location has 2 key people listed in North Texas/Ark-La-Tex Edition

Oravetz Energy Co.

Tyler, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Orbis Engineering Inc.

Denver, CO location has 5 key people listed in Mountain States Edition

Denver, CO location has 5 key people listed in North Texas/Ark-La-Tex Edition

Denver, CO location has 5 key people listed in Mid-Continent Edition

Denver, CO location has 5 key people listed in South Texas/Eagle Ford Edition

Houston, TX location has 3 key people listed in Mountain States Edition

Houston, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Houston, TX location has 3 key people listed in Mid-Continent Edition

Houston, TX location has 3 key people listed in South Texas/Eagle Ford Edition

Orbit Construction

Breckenridge, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Orbit Enterprises, Inc

Lovington, NM location has 1 key person listed in Permian Basin Edition

Orbit Gas Storage, Inc.

Henderson, KY location has 1 key person listed in NorthEast Edition

Orbit Pumping Service

Westhope, ND location has 3 key people listed in Mountain States Edition

Orbit Pumping Service

Westhope, ND location has 3 key people listed in Mountain States Edition

Orca Operating Co, LLC

Tulsa, OK location has 1 key person listed in Mid-Continent Edition

Ordner Well Service

Clay City, IL location has 1 key person listed in NorthEast Edition

ORE Systems, Inc.

Farmington, NM location has 2 key people listed in Mountain States Edition

Orfun Co., LLC

Fort Collins, CO location has 1 key person listed in Mountain States Edition

ORI Environmental, Inc.

Broken Arrow, OK location has 1 key person listed in Mid-Continent Edition

Oklahoma City, OK location has 2 key people listed in Mid-Continent Edition

Origin Production Company, Inc.

Luling, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Original Services Inc

San Angelo, TX location has 1 key person listed in Permian Basin Edition

Original Services Inc

San Angelo, TX location has 1 key person listed in Permian Basin Edition

Oringderff Oil Properties

Perryton, TX location has 2 key people listed in Mid-Continent Edition

Orion Construction Services Corp.

Woodward, OK location has 1 key person listed in Mid-Continent Edition

Orion Consulting, Inc.

Fort Smith, AR location has 1 key person listed in Mid-Continent Edition

Orion Drilling Co., LLC

Corpus Christi, TX location has 4 key people listed in NorthEast Edition

Corpus Christi, TX location has 4 key people listed in South Texas/Eagle Ford Edition

Orion Exploration, LLC

Tulsa, OK location has 5 key people listed in Mid-Continent Edition

Orion Oil & Gas Properties

Amarillo, TX location has 2 key people listed in Mid-Continent Edition

Orion Petro Corp.

Mount Vernon, IL location has 1 key person listed in NorthEast Edition

Atwater, OH location is in NorthEast Edition

Wooster, OH location has 1 key person listed in NorthEast Edition

Orion Pipeline, LLC

Tyler, TX location has 5 key people listed in North Texas/Ark-La-Tex Edition

Orla Petco, Inc.

Midland, TX location has 2 key people listed in Permian Basin Edition

Orloski, John C.

Bartlesville, OK location is in Mid-Continent Edition

Ormand, Don R.

Midland, TX location has 1 key person listed in Permian Basin Edition

Orr Energy, LLC

Greeley, CO location has 2 key people listed in Mountain States Edition

Orr Enterprises, Inc.

Duncan, OK location has 2 key people listed in Mid-Continent Edition

Orrell, Ben, Oil Producer

Casey, IL location has 1 key person listed in NorthEast Edition

Ors Fluids, LLC

Tyler, TX location has 5 key people listed in North Texas/Ark-La-Tex Edition

Ortco, Inc.

Oklahoma City, OK location is in Mid-Continent Edition

Orteck

La Grange, IL location is in NorthEast Edition

Ortloff Engineers Ltd.

Midland, TX location has 2 key people listed in Permian Basin Edition

OS&S Operating, Inc.

Electra, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Osado Oil & Gas, Ltd.

Midland, TX location is in Permian Basin Edition

Osage Energy Resources, LLC

Pawhuska, OK location has 4 key people listed in Mid-Continent Edition

Osage Enterprises, Inc.

Newcastle, WY location has 1 key person listed in Mountain States Edition

Osborn Heirs Co.

San Antonio, TX location has 6 key people listed in North Texas/Ark-La-Tex Edition

San Antonio, TX location has 6 key people listed in South Texas/Eagle Ford Edition

San Antonio, TX location has 6 key people listed in Permian Basin Edition

Osborn, W. B., Oil & Gas Operations

San Antonio, TX location has 4 key people listed in North Texas/Ark-La-Tex Edition

San Antonio, TX location has 4 key people listed in NorthEast Edition

San Antonio, TX location has 4 key people listed in South Texas/Eagle Ford Edition

San Antonio, TX location has 4 key people listed in Permian Basin Edition

Osborne Mineral Trust

Oklahoma City, OK location has 1 key person listed in Mid-Continent Edition

Oso Exploration Co.

San Antonio, TX location has 2 key people listed in South Texas/Eagle Ford Edition

Osprey Oil & Gas Inc.

Centennial, CO location has 1 key person listed in Mountain States Edition

Ost, Harvey, Oilfield Service

Malta, MT location has 1 key person listed in Mountain States Edition

OTA Compression, LLC

Ozark, AR location has 1 key person listed in Mid-Continent Edition

Okemah, OK location is in Mid-Continent Edition

Granbury, TX location is in North Texas/Ark-La-Tex Edition

Irving, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Irving, TX location has 3 key people listed in Mid-Continent Edition

Otis Compliance Training

Tyler, TX location has 1 key person listed in Permian Basin Edition

Otis Eastern Service, Inc.

Wellsville, NY location has 5 key people listed in NorthEast Edition

Bradford, PA location has 1 key person listed in NorthEast Edition

Otis Instruments Inc.

Bryan, TX location has 1 key person listed in Permian Basin Edition

Midland, TX location has 1 key person listed in Permian Basin Edition

OTP Industrial Soloutions

Louisville, KY location is in NorthEast Edition

Cleveland, OH location has 1 key person listed in NorthEast Edition

Columbus, OH location has 1 key person listed in NorthEast Edition

Otwell, Mawby, PC

Traverse City, MI location has 3 key people listed in NorthEast Edition

Oty, John W.

Green Valley, AZ location is in Mountain States Edition

Ouray Brine Co.

Rangely, CO location has 1 key person listed in Mountain States Edition

Vernal, UT location has 1 key person listed in Mountain States Edition

Outback Oil & Mineral Exploration

Union Dale, NY location has 1 key person listed in NorthEast Edition

Outback Rentals & Hotshot

Vernal, UT location has 2 key people listed in Mountain States Edition

Outback Well Service, Inc.

Belfield, ND location has 2 key people listed in Mountain States Edition

Outlaw Oil Tools, Inc.

Vernal, UT location has 1 key person listed in Mountain States Edition

Outlaw Tank Service, Inc.

Ellinwood, KS location has 1 key person listed in Mid-Continent Edition

Outrigger Energy

Denver, CO location has 6 key people listed in Mountain States Edition

Overflow Energy, LLC

Booker, TX location has 1 key person listed in Mid-Continent Edition

Overland Exploration Co.

Edmond, OK location has 1 key person listed in Mid-Continent Edition

Overly Operating Co.

San Antonio, TX location has 2 key people listed in South Texas/Eagle Ford Edition

Overton Energy, LLC

Houston, TX location has 1 key person listed in South Texas/Eagle Ford Edition

OVO, Inc.

Tell City, IN location has 2 key people listed in NorthEast Edition

Owen Oil Tools

Godley, TX location has 14 key people listed in Mountain States Edition

Godley, TX location has 14 key people listed in North Texas/Ark-La-Tex Edition

Godley, TX location has 14 key people listed in Mid-Continent Edition

Godley, TX location has 14 key people listed in NorthEast Edition

Godley, TX location has 14 key people listed in South Texas/Eagle Ford Edition

Godley, TX location has 1 key person listed in Permian Basin Edition

Odessa, TX location has 1 key person listed in Permian Basin Edition

Rosharon, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Snyder, TX location has 1 key person listed in Permian Basin Edition

Victoria, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Owen Oilfield Products

Snyder, TX location is in Permian Basin Edition

Owen Surveying Co.

Breckenridge, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Owen Welltech Inc.

Littleton, CO location has 1 key person listed in Mountain States Edition

Owen, Robert B.

Durango, CO location is in Mountain States Edition

Corpus Christi, TX location is in South Texas/Eagle Ford Edition

Owens Machine & Tool

Abilene, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition

Owens, James W.

Oklahoma City, OK location is in Mid-Continent Edition

Owensboro Supply Co., Inc.

Owensboro, KY location has 1 key person listed in NorthEast Edition

OWI Sales, Inc

Corpus Christi, TX location is in South Texas/Eagle Ford Edition

McAllen, TX location is in South Texas/Eagle Ford Edition

Victoria, TX location has 1 key person listed in South Texas/Eagle Ford Edition

Owl Creek Consulting

Bozeman, MT location has 1 key person listed in Mountain States Edition

OZ Gas, Ltd.

Tidioute, PA location has 1 key person listed in NorthEast Edition

Ozark Exploration, Inc.

Dallas, TX location has 3 key people listed in North Texas/Ark-La-Tex Edition

Dallas, TX location has 3 key people listed in Permian Basin Edition

Ozark Mountain Royalty, LLP

Bentonville, AR location has 1 key person listed in Mid-Continent Edition

Ozark Mud & Chemical

Kensett, AR location has 1 key person listed in Mid-Continent Edition

Van Buren, AR location has 1 key person listed in Mid-Continent Edition

Ozark Production Co., Inc.

Shreveport, LA location has 1 key person listed in North Texas/Ark-La-Tex Edition

Ozark Pumps and Parts

Bella Vista, AR location has 1 key person listed in Mid-Continent Edition

Ozona Weed Wash

Ozona, TX location has 1 key person listed in North Texas/Ark-La-Tex Edition