101 | Olia Oil & Gas Services LLC | Cedar Park, TX 78630-2049 | Oil & Gas Operator | Aug 2022 |
102 | Oliphant Gertrud | Holdenville, OK 74848-0849 | Oil Operator | Aug 2013 |
103 | Oliphant Operating LTD LLC | Tulsa, OK 74159-4529 | Oil Operator | Sep 2024 |
104 | Olive Oil & Gas Inc | Jennings, OK 74038 | Oil & Gas Operator | Jul 2024 |
105 | Olympia Oil Inc | Edmond, OK 73083-7088 | Oil & Gas Operator | Jul 2020 |
106 | Olympic Petroleum Company | Tulsa, OK 74114 | Oil & Gas Operator | Jun 1998 |
107 | Omega Energy, LLC | Corpus Chrsti, TX 78418 | Oil & Gas Operator | Dec 2024 |
108 | Omimex International Corporation | Fort Worth, TX 76103-2300 | Oil & Gas Operator | Aug 2024 |
109 | Omimex Petroleum Inc | Fort Worth, TX 76120 | Oil & Gas Operator | Aug 2022 |
110 | Omni Oil & Gas, Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Oct 2017 |
111 | On-Line Oil Inc | Oklahoma City, OK 73105-5208 | Oil & Gas Operator | Mar 2015 |
112 | Onapa Gas Company LLC | Tulsa, OK 74136-7253 | Gas Operator | Nov 2019 |
113 | Oneok Exploration Company | Tulsa, OK 74102 | Oil & Gas Operator | Feb 2017 |
114 | Oneok Field Services Company | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2022 |
115 | Oneok Gas Processing LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2018 |
116 | Oneok Gas Transportation Co | Tulsa, OK 74121-2089 | Oil & Gas Operator | Oct 2014 |
117 | Oneok Resources Company | Tulsa, OK 74102 | Oil & Gas Operator | Feb 2017 |
118 | Onpoint Oil & Gas LLC | Oklahoma City, OK 73170-4848 | Oil & Gas Operator | Aug 2024 |
119 | Onshore Royalties LLC | Houston, TX 77269 | Oil & Gas Operator | Sep 2024 |
120 | Onyx Energy Corporation | Oklahoma City, OK 73157 | Oil & Gas Operator | May 1994 |
121 | Onyx Properties Corp | Oklahoma City, OK 73114 | Oil & Gas Operator | May 2006 |
122 | Opal Operating Company LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2024 |
123 | Open Door Holdings Inc | Surprise, AZ 85387-2015 | Oil & Gas Operator | Feb 2024 |
124 | Open Door Productions Inc | Muskogee, OK 74401-1032 | Oil & Gas Operator | Apr 2020 |
125 | Open Range Energy LLC | Jones, OK 73049-8744 | Oil & Gas Operator | Jul 2024 |
126 | Optima Exploration LLC | Tulsa, OK 74116-5664 | Oil & Gas Operator | Mar 2015 |
127 | Opubco Resources Of TX Inc | Dallas, TX 75231 | Oil & Gas Operator | Sep 2005 |
128 | Oracle Resources Oklahoma LP | Dallas, TX 75240-5751 | Oil & Gas Operator | Feb 2008 |
129 | Orason Resources Inc | Tulsa, OK 74169-1225 | Oil & Gas Operator | Nov 2006 |
130 | Orca Operating Company LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2024 |
131 | Oren Stone | Erick, OK 73645-4542 | Gas Operator | Jun 2022 |
132 | Orion Exploration LLC | Tulsa, OK 74105-5153 | Oil & Gas Operator | Apr 2015 |
133 | Orion Exploration Partners LLC | Tulsa, OK 74105-5153 | Oil & Gas Operator | Aug 2024 |
134 | Orloski John C | Bartlesville, OK 74006 | Oil & Gas Operator | Sep 2024 |
135 | Oryx Crude Trading & Transporation LP | Dallas, TX 75221 | Oil & Gas Operator | Jun 1999 |
136 | Osa Oil & Gas LLC | Tulsa, OK 74131 | Oil & Gas Operator | Aug 2023 |
137 | Osage Energy LLC | Colony, KS 66015 | Oil Operator | Nov 2023 |
138 | Osage Energy Resources LLC | Bartlesville, OK 74005-2527 | Oil & Gas Operator | Sep 2024 |
139 | Osage Exploration & Development Inc | San Diego, CA 92131-3807 | Oil & Gas Operator | Oct 2016 |
140 | Osage Oil & Transportation Inc | Cleveland, OK 74020 | Oil & Gas Operator | Nov 2000 |
141 | Osage Operating | Virginia Beach, VA 23452 | Oil & Gas Operator | Oct 2003 |
142 | Osage Petroleum Corporation | Saint Louis, MO 63131-4691 | Oil & Gas Operator | Mar 2009 |
143 | Osborn Heirs Co | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2024 |
144 | Osburn Gerald Dba Ozzy & Son Oil & Gas | Drumright, OK 74030-5467 | Oil Operator | Oct 2020 |
145 | Oscar'S Well Service Inc | Okemah, OK 74859 | Oil & Gas Operator | Apr 1998 |
146 | Oshtah Oil Company LLC | Stratford, OK 74872 | Oil & Gas Operator | Sep 2018 |
147 | Oso Resources LLC | Oklahoma City, OK 73118-5022 | Oil & Gas Operator | Aug 2024 |
148 | Osterhout Phillip L | Drumright, OK 74030-0693 | Oil & Gas Operator | Jan 2014 |
149 | Oswego Arbuckle Enterprise Inc | S Coffeyville, OK 74072-9702 | Oil & Gas Operator | Mar 2015 |
150 | Otc Investors Inc | Locust Grove, OK 74352 | Oil Operator | Jul 2024 |
151 | Otc Petroleum Corporation | Nichols Hill, OK 73116 | Oil & Gas Operator | Mar 2015 |
152 | Otc/Occ Not Assigned | | Oil & Gas Operator | May 2024 |
153 | Ouachita Exploration Inc | Chickasha, OK 73018 | Oil & Gas Operator | Sep 2024 |
154 | Outback Petroleum Inc | Moore, OK 73160-9998 | Oil & Gas Operator | Mar 2015 |
155 | Outlaw Oil And Gas LLC | Kaw City, OK 74641 | Oil & Gas Operator | Aug 2024 |
156 | Ovation Energy II, LP | Houston, TX 77279 | Oil & Gas Operator | Jun 2011 |
157 | Ovation Energy, LP | N Richlnd HLS, TX 76180 | Oil & Gas Operator | Sep 2004 |
158 | Overflow Energy Stack LLC | Booker, TX 79005 | Oil Operator | Sep 2022 |
159 | Overflow Energy, LLC | Booker, TX 79005 | Oil & Gas Operator | Dec 2024 |
160 | Overland Investments Inc | Coweta, OK 74429 | Oil & Gas Operator | Aug 2024 |
161 | Ovintiv Mid-Continent Inc. | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Sep 2024 |
162 | Ovintiv USA Inc. | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
163 | Owens James W | Tulsa, OK 74114-1425 | Oil & Gas Operator | Oct 2022 |
164 | Owl Creek Production Co., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2006 |
165 | Oxco LLC | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2015 |
166 | Oxford Exploration Company | Denver, CO 80237 | Oil & Gas Operator | Aug 1995 |
167 | Oxford Oil Inc | Cleveland, OK 74020 | Oil & Gas Operator | Feb 1997 |
168 | Oxley Energy LLC | Houston, TX 77042 | Gas Operator | Sep 2024 |
169 | Oxley John C | Tulsa, OK 74103 | Oil & Gas Operator | Sep 1996 |
170 | Oxley Petroleum | Tulsa, OK 74119-3609 | Oil & Gas Operator | Jan 2020 |
171 | Oxley Petroleum Company | Oklahoma City, OK 73118-1044 | Oil & Gas Operator | Sep 2017 |
172 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
173 | Ozark Oil Corporation | Springfield, MO 65804 | Oil & Gas Operator | Oct 1992 |