| 1.
| Oil & Gas Consultants International, In. |
🇺🇸 Tulsa, OK, United States |
1 |
| 2.
| OIL & GAS IT, LLC |
🇺🇸 Laredo, TX, United States |
1 |
| 3.
| OIL & GAS MEASUREMENT LIMITED |
🇬🇧 London, United Kingdom |
1 |
| 4.
| Oil & Gas Measurement Limited |
🇬🇧 , United Kingdom |
1 |
| 5.
| OIL & GAS MEASUREMENT LIMITED |
🇬🇧 London, United Kingdom |
1 |
| 6.
| Oil & Gas Measurement Limited |
🇬🇧 Ely, United Kingdom |
2 |
| 7.
| OIL & GAS PROCESS SOLUTIONS |
🇺🇸 Phoenix, AZ, United States |
1 |
| 8.
| OIL & GAS PROCESS SOLUTIONS |
🇺🇸 Phoenix, AZ, United States |
1 |
| 9.
| OIL & GAS PROCESS SOLUTIONS, LLC |
🇺🇸 Phoenix, AZ, United States |
1 |
| 10.
| Oil & Gas Rental Services, Inc. |
🇺🇸 New Orleans, LA, United States |
1 |
| 11.
| Oil & Gas Survey Center, China Geological Survey |
🇨🇳 Beijing, China |
1 |
| 12.
| OIL & GAS TECH ENTERPRISES C.V. |
Belleville, Barbados |
1 |
| 13.
| Oil & Gas Tech Enterprises C.V. |
🇳🇱 Noordwijk, Netherlands |
4 |
| 14.
| OIL ADDPER SERVICES S.R.L |
🇦🇷 Neuquen, Argentina |
1 |
| 15.
| OIL AND GAS MEASUREMENT TECHNOLOGY" LTD |
🇷🇺 Moscow, Russian Federation |
1 |
| 16.
| OIL AND GAS SOLUTIONS, LLC |
🇺🇸 Spring, TX, United States |
1 |
| 17.
| Oil and Gas Technology Research Institute, PetroChina Changqing Oilfield Company |
🇨🇳 Xi'an, China |
3 |
| 18.
| Oil and Natural Gas Corporation Limited |
🇮🇳 New Delhi, India |
2 |
| 19.
| OIL AND NATURAL GAS CORPORATION LTD |
🇮🇳 Bombay, India |
1 |
| 20.
| Oil and Natural Gas Corporation Ltd. |
🇮🇳 New Delhi, India |
1 |
| 21.
| Oil Busters, LLC |
🇺🇸 Decatur, AL, United States |
1 |
| 22.
| Oil Capital NOW, LLC |
🇺🇸 Tulsa, OK, United States |
2 |
| 23.
| Oil Chem Technologies |
🇺🇸 Sugar Land, TX, United States |
14 |
| 24.
| OIL CHEM TECHNOLOGIES, INC. |
🇺🇸 Sugar Land, TX, United States |
7 |
| 25.
| Oil Clear Europe Ltd. |
🇬🇧 Stevenage, Herfordshire, United Kingdom |
1 |
| 26.
| Oil Clear Europe Ltd. |
🇬🇧 Hertfordshire, United Kingdom |
1 |
| 27.
| Oil Crops Research Institute Chinese Academy of Agricultural Sciences |
🇨🇳 Wuben, Hubei, China |
1 |
| 28.
| Oil Crops Research Institute of Chinese Academy of Agricultural Sciences |
🇨🇳 Wuhan, China |
1 |
| 29.
| Oil Crops Research Institute, CAAS |
🇨🇳 Wuhan, Hubei, China |
1 |
| 30.
| OIL CROPS RESEARCH INSTITUTE, CHINESE ACADAMY OF AGRICULTURAL SCIENCES |
🇨🇳 Hubei, China |
1 |
| 31.
| Oil Crops Research Institute, Chinese Academy of Agricultural Science |
🇨🇳 Wuhan, China |
1 |
| 32.
| OIL CROPS RESEARCH INSTITUTE, CHINESE ACADEMY OF AGRICULTURAL SCIENCES |
🇨🇳 Wuhan, China |
2 |
| 33.
| OIL CROPS RESEARCH INSTITUTE, CHINESE ACADEMY OF AGRICULTURAL SCIENCES |
🇨🇳 HUBEI, China |
16 |
| 34.
| OIL CROPS RESEARCH INSTITUTE, CHINESE ACADEMY OF AGRICULTURAL SECIENCES |
🇨🇳 Wuhan, Hubei, China |
1 |
| 35.
| OIL CROPS RESEARCH INSTITUTE, CHINESE ACADEMY OF ARGICULTURAL SCIENCES |
🇨🇳 Hubei, China |
1 |
| 36.
| OIL CROPS RESEARCH INSTITUTE, CHINESE ACADEMY... |
🇨🇳 Wuhan, China |
1 |
| 37.
| Oil Dri Corporation |
🇺🇸 Chicago, IL, United States |
1 |
| 38.
| Oil Equipment Manufacturing, LLC |
🇺🇸 Ansonia, CT, United States |
1 |
| 39.
| Oil Extraction Company |
🇺🇸 Cumberland, RI, United States |
1 |
| 40.
| Oil Flow USA, Inc. |
🇺🇸 Harrisonburg, VA, United States |
4 |
| 41.
| OIL INDIA LIMITED |
🇮🇳 DULIAJAN, India |
3 |
| 42.
| OIL INDIA LIMITED |
🇮🇳 Guwahati, Assam, India |
1 |
| 43.
| OIL INDIA LIMITED |
🇮🇳 Assam, India |
1 |
| 44.
| Oil Lift Technology Inc. |
🇨🇦 , Canada |
4 |
| 45.
| OIL LIFT TECHNOLOGY INC. |
🇨🇦 Calgary, Canada |
10 |
| 46.
| OIL LIFT TECHNOLOGY INC. |
🇨🇦 Calgary, AB, Canada |
1 |
| 47.
| Oil Mallee Company of Australia |
🇦🇺 Belmont, Australia |
1 |
| 48.
| Oil Palm Harvesting Company Ltd. |
🇨🇦 Calgary, AB, Canada |
1 |
| 49.
| Oil Patch Group, Inc. |
🇺🇸 Houston, TX, United States |
1 |
| 50.
| OIL POLLUTION SERVICES LIMITED |
🇬🇧 Bedford, United Kingdom |
1 |
| 51.
| Oil Process Systems, Inc |
🇺🇸 Allentown, PA, United States |
2 |
| 52.
| Oil Processing Systems, Inc. |
🇺🇸 Allentown, PA, United States |
1 |
| 53.
| Oil Production Technology Research Institute of Shengli Oilfield Branch of China Petroleum Chemical Corporation |
🇨🇳 Dongying, China |
1 |
| 54.
| Oil Purification Systems, Inc. |
🇺🇸 Tampa, FL, United States |
1 |
| 55.
| Oil Purification Systems, Inc. |
🇺🇸 Shelton, CT, United States |
3 |
| 56.
| OIL REBEL INNOVATIONS LTD. |
🇨🇦 Lloydminster, Canada |
3 |
| 57.
| Oil Rebel Innovations Ltd. |
🇨🇦 Lloydminster, Alberta, Canada |
1 |
| 58.
| Oil Rebel Innovations Ltd. |
🇨🇦 Lloydminster, AB, Canada |
1 |
| 59.
| Oil Rebel Innovations Ltd. |
🇨🇦 Calgary, Alberta, Canada |
1 |
| 60.
| Oil Recovery Technology Holdings, LLC |
🇺🇸 New York, NY, United States |
1 |
| 61.
| OIL SANDS UNDERGROUND MINING CORP. |
🇨🇦 Alberta, Canada |
2 |
| 62.
| Oil Sands Underground Mining Corporation |
🇨🇦 Calgary, Canada |
2 |
| 63.
| OIL SANDS UNDERGROUND MINING, INC. |
🇨🇦 Calgary, Canada |
2 |
| 64.
| Oil Sands Underground Mining, Inc. |
🇺🇸 Evergreen, CO, United States |
3 |
| 65.
| OIL SKIMMERS, INC. |
🇺🇸 North Royalton, OH, United States |
2 |
| 66.
| Oil Solutions Group, Inc. |
🇺🇸 Colleyville, TX, United States |
1 |
| 67.
| Oil Spill Solutions, LLC |
🇺🇸 Center, TX, United States |
1 |
| 68.
| Oil Stands Underground Mining Corp. |
🇨🇦 , Canada |
1 |
| 69.
| Oil States Energy Services, Inc. |
🇺🇸 Houston, TX, United States |
4 |
| 70.
| OIL STATES ENERGY SERVICES, L.L.C. |
🇺🇸 Houston, TX, United States |
55 |
| 71.
| OIL STATES INDUSTRIES (UK) LIMITED |
🇬🇧 Aberdeen, Aberdeenshire, United Kingdom |
1 |
| 72.
| Oil States Industries (UK) Limited |
🇬🇧 Aberdeen, United Kingdom |
8 |
| 73.
| OIL STATES INDUSTRIES (UK) LTD. |
🇬🇧 Aberdeen, Scotland, United Kingdom |
1 |
| 74.
| Oil States Industries (UK) Ltd. |
🇬🇧 Aberdeen, United Kingdom |
5 |
| 75.
| Oil States Industries Limited |
🇬🇧 Aberdeen, United Kingdom |
1 |
| 76.
| OIL STATES INDUSTRIES, INC. |
🇺🇸 Arlington, TX, United States |
41 |
| 77.
| Oil States International (UK) Limited |
🇬🇧 Aberdeen, United Kingdom |
1 |
| 78.
| OIL STTES ENERGY SERVICES, L.L.C. |
🇺🇸 Houston, TX, United States |
1 |
| 79.
| OIL SYSTEM |
🇫🇷 Paris, France |
1 |
| 80.
| Oil Tech SARL |
🇱🇧 Beirut, Lebanon |
1 |
| 81.
| Oil Technology Group LLC |
🇺🇸 The Woodlands, TX, United States |
2 |
| 82.
| OIL TOOL SOLUTIONS, INC. |
🇺🇸 Houston, TX, United States |
2 |
| 83.
| Oil Tools of Norway |
🇳🇴 Randaberg, Norway |
1 |
| 84.
| Oil Tranporting Joint Stock Company "Transneft" |
🇷🇺 Moscow, Russian Federation |
1 |
| 85.
| OIL TRANSPORTING JOINT STOCK COMPANY “TRANSNEFT” |
🇷🇺 Moscow, Russian Federation |
1 |
| 86.
| OIL WELL CLOSURE AND PROTECTION AS |
🇳🇴 Sandefjord, Norway |
1 |
| 87.
| OIL WELL CONSULTING, LLC |
🇺🇸 Potomac, MD, United States |
1 |
| 88.
| OIL&GAS METERING EQUIPMENT S.R.O |
🇨🇿 538 51 Restoky, Czech Republic |
1 |
| 89.
| OIL&GAS METERING EQUIPMENT S.R.O. |
🇨🇿 Chrast u Chrudime, Czech Republic |
1 |
| 90.
| OIL&GAS METERING EQUIPMENT S.R.O. |
🇨🇿 53851 Restoky, Czech Republic |
1 |
| 91.
| OIL&GASMETERING EQUIPMENT S.R.O. |
🇨🇿 Restoky, Czech Republic |
1 |
| 92.
| OIL, GAS AND INDUSTRIAL PROCESS EQUIPMENT |
🇺🇸 Sand Springs, OK, United States |
1 |
| 93.
| Oil, Gas and Industrial Process Equipment, Inc. |
🇺🇸 Sand Spring, OK, United States |
1 |
| 94.
| Oil-Dri Corporation of America |
Chicago, un |
1 |
| 95.
| Oil-Dri Corporation of America |
🇺🇸 Chicago, IL, United States |
13 |
| 96.
| OIL-RITE CORPORATION |
🇺🇸 MANITOWOC, WI, United States |
12 |
| 97.
| Oil-Tech, Inc. |
🇺🇸 Morris Plains, NJ, United States |
3 |
| 98.
| OIL2GREEN |
🇫🇷 Aix-les-Bains, France |
1 |
| 99.
| Oilcare Holding Aps, A corporation of Denmark |
🇩🇰 Farum, Denmark |
1 |
| 100.
| OILCLING CORPORATION |
🇨🇦 Port Hope, Canada |
1 |
| 101.
| OILCROPS RESEARCH INSTITUTE OF CHINESE ACADAMY OF AGRICULTURE SCIENCES |
🇨🇳 HUBEI, China |
4 |
| 102.
| Oilcrops Research Institute of Chinese Academy of Agriculture Sciences |
🇨🇳 Wuhan, Hubei, China |
6 |
| 103.
| OILES COPORATION |
🇯🇵 TOKYO, Japan |
1 |
| 104.
| OILES CORPOLATION |
🇯🇵 Tokyo, Japan |
1 |
| 105.
| OILES CORPORATION |
🇯🇵 Minato-ku, Japan |
7 |
| 106.
| OILES CORPORATION |
🇯🇵 Tokyo, Japan |
209 |
| 107.
| OILES CORPORATION |
🇯🇵 Minato-ku, Tokyo, Japan |
14 |
| 108.
| Oiles Corporation |
🇯🇵 Fujisawa, Japan |
5 |
| 109.
| OILES CORPORATION |
🇯🇵 Minato, Tokyo, Japan |
1 |
| 110.
| Oiles Corporation |
🇯🇵 Kanagawa, Japan |
3 |
| 111.
| OILES CORPORATION |
🇯🇵 Fujisawa-shi, Kanagawa, Japan |
1 |
| 112.
| OILES CORPORATION and JTEKT Corporation |
🇯🇵 Tokyo, Japan |
1 |
| 113.
| OILES DEUTSCHLAND GMBH |
🇩🇪 Ober-Moerlen, Germany |
7 |
| 114.
| OILFIELD DEVELOPMENT CENTER LIMITED |
Victoria, Seychelles |
1 |
| 115.
| OILFIELD EQUIPMENT DEVELOPMENT CENTER LIMITED |
Seychelles |
1 |
| 116.
| Oilfield Equipment Development Center Limited |
Victoria, Mahe, Seychelles |
1 |
| 117.
| OILFIELD EQUIPMENT DEVELOPMENT CENTER LIMITED |
🇬🇧 Victoria, United Kingdom |
1 |
| 118.
| Oilfield Equipment Development Center Limited |
Victoria, Seychelles, un |
1 |
| 119.
| Oilfield Equipment Development Center Limited |
Victoria, Seychelles |
13 |
| 120.
| Oilfield Equipment Development Center Limited |
Mahe, Victoria, Seychelles |
6 |
| 121.
| Oilfield Equpiment Development Center Limited |
Victoria, Mache, Seychelles |
1 |
| 122.
| Oilfield Inspection App Inc. |
🇨🇦 Calgary, Canada |
1 |
| 123.
| OILFIELD MINERAL SOLUTIONS LIMITED |
🇬🇧 Edinburgh, United Kingdom |
4 |
| 124.
| OILFIELD MINERAL SOLUTIONS LIMITED |
🇬🇧 Edinburgh, Scotland, United Kingdom |
3 |
| 125.
| Oilfield Mineral Solutions Limited |
🇬🇧 Scotland, United Kingdom |
1 |
| 126.
| OILFIELD PIPING SYSTEMS PTY LTD |
🇦🇺 Brisbane, Australia |
1 |
| 127.
| OILFIELD SERVICE PROFESSIONALS, INC. |
🇺🇸 Lafayette, LA, United States |
1 |
| 128.
| Oilfield Service Professionals, LLC |
🇺🇸 Houston, TX, United States |
1 |
| 129.
| Oilfield Solutions and Design, LLC |
🇺🇸 New Iberia, LA, United States |
1 |
| 130.
| OILFIELD TECHNOLOGY GROUP AS |
🇳🇴 Sandnes, Norway |
1 |
| 131.
| OILFIELD-ELECTRIC-MARINE, INC. |
🇺🇸 HOUSTON, TX, United States |
2 |
| 132.
| Oilflow Solutions Holding Limited |
🇬🇧 Lancashire, United Kingdom |
1 |
| 133.
| Oilflow Solutions Holdings Limited |
🇬🇧 Bradford, United Kingdom |
1 |
| 134.
| Oilflow Solutions Holdings Limited |
🇬🇧 Lancashire, United Kingdom |
7 |
| 135.
| OILFLOW SOLUTIONS HOLDINGS LIMITED |
🇬🇧 Wigan, Lancashire, United Kingdom |
3 |
| 136.
| OILFLOW SOLUTIONS INC. |
🇨🇦 Calgary, AB, Canada |
1 |
| 137.
| OILFLOW SOLUTIONS INC. |
🇬🇧 Calgary, United Kingdom |
1 |
| 138.
| OILFLOW SOLUTIONS INC. |
🇨🇦 Calgary, Canada |
1 |
| 139.
| Oilgear Towler S.A.S. |
🇫🇷 Croissy Beaubourg, France |
1 |
| 140.
| Oilify New-tech Solutions Inc. |
🇨🇦 Invermere, Canada |
3 |
| 141.
| OILIFY NEW-TECH SOLUTIONS INC. |
🇨🇦 Calgary, Canada |
1 |
| 142.
| Oilmatic Systems LLC |
🇺🇸 Keasbey, NJ, United States |
6 |
| 143.
| OILMEN'S TRUCK TANKS, INC. |
🇺🇸 Spartanburg, SC, United States |
1 |
| 144.
| OILON OY |
🇫🇮 Lahti, Finland |
1 |
| 145.
| Oilon Technology Oy |
🇫🇮 Lahti, Finland |
4 |
| 146.
| OilPatch Technology |
🇺🇸 Houston, TX, United States |
1 |
| 147.
| OILPATH HYDRAULICS PTY LTD |
🇦🇺 South Australia, Australia |
1 |
| 148.
| OILQUICK AB |
🇸🇪 Hudiksvall, Sweden |
7 |
| 149.
| OilQuick Deutschland GmbH |
🇩🇪 Steindorf, Germany |
6 |
| 150.
| OilQuick Deutschland KG |
🇩🇪 Steindorf, Germany |
17 |
| 151.
| Oils Wells, Inc. |
🇺🇸 Bayshore, NY, United States |
1 |
| 152.
| OILSAFE S.r.l. |
🇮🇹 Modena, Italy |
1 |
| 153.
| Oilsco Technologies Limited |
🇬🇧 Aberdeen, United Kingdom |
2 |
| 154.
| Oilseeds Biorefinery Corporation |
George Town, Cayman Islands |
1 |
| 155.
| Oilseeds Biorefinery Corporation |
George Town, Grand Cayman, Cayman Islands |
2 |
| 156.
| OilStone Energy Services, Inc. |
🇺🇸 The Woodlands, TX, United States |
1 |
| 157.
| Oiltech Automation Limited |
🇬🇧 Brighouse, United Kingdom |
1 |
| 158.
| Oiltool Engineering Services, Inc. |
🇺🇸 Willis, TX, United States |
4 |
| 159.
| OILTOOLSTEQ LTD |
🇬🇧 Aberdeen, United Kingdom |
1 |
| 160.
| OILTREID LIMITED LIABILITIES COMPANY |
🇷🇺 Moscow, Russian Federation |
2 |
| 161.
| Oilwhale Oy |
🇫🇮 Lielahti TL, Finland |
2 |