| 1 | L & B Oil Company Inc | Houston, TX 77019-3115 | Oil & Gas Operator | Mar 2025 |
| 2 | L & F Oil Company | Duncan, OK 73533-3636 | Oil Operator | Jun 2009 |
| 3 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | Jun 2025 |
| 4 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 5 | L & L Producers | Independnce, KS 67301 | Oil Operator | Jun 2025 |
| 6 | L & L Smith Energy Corporation | Muskogee, OK 74403-8479 | Oil & Gas Operator | Jan 2023 |
| 7 | L & M Oil Co. | Yates Center, KS 66783 | Oil & Gas Operator | Dec 1998 |
| 8 | L & N Exploration Inc | | Oil & Gas Operator | Jul 2013 |
| 9 | L & R Energy Corporation | Spearman, TX 79081 | Oil & Gas Operator | Nov 2014 |
| 10 | L & T Disposal LLC | Wilson, OK 73463-6545 | Oil Operator | Mar 2016 |
| 11 | L And L Production Company | Skellytown, TX 79080 | Oil & Gas Operator | Sep 1996 |
| 12 | L And R Oil Company | Oakley, KS 67748 | Oil & Gas Operator | Jan 2004 |
| 13 | L B G Operating Co | Fairfax, OK 74037 | Oil & Gas Operator | Oct 2014 |
| 14 | L D & Associates | Broken Arrow, OK 74014-1712 | Oil Operator | Feb 2012 |
| 15 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 16 | L.E. Jones Operating, Inc. | Duncan, OK 73534 | Oil & Gas Operator | Aug 2025 |
| 17 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Oct 2025 |
| 18 | La Fee Oil LLC | Duncan, OK 73533 | Oil Operator | Jun 2025 |
| 19 | Labo Oil Company Inc | Drumright, OK 74030-5619 | Oil & Gas Operator | Mar 2025 |
| 20 | Lackey Danny | Kiefer, OK 74041-0702 | Oil & Gas Operator | Oct 2022 |
| 21 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 22 | Lackey Raymond R & Assoc | Sulphur, OK 73086 | Oil & Gas Operator | Jun 2025 |
| 23 | Lackey WM Oil & Gas Oper Co | Shawnee, OK 74801 | Oil & Gas Operator | Jan 1994 |
| 24 | Ladd LLC | El Reno, OK 73036 | Oil & Gas Operator | Nov 2018 |
| 25 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 26 | Ladder Energy Company | Tulsa, OK 74120-4281 | Oil & Gas Operator | Jan 2018 |
| 27 | Lagoon Water Logistics LLC | Oklahoma City, OK 73103 | Oil Operator | Jul 2024 |
| 28 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 29 | Lahoma Production Inc | Jenks, OK 74037 | Oil & Gas Operator | Apr 2025 |
| 30 | Laird Anita Louise | Asher, OK 74826-3215 | Oil Operator | Jun 2018 |
| 31 | Laird Bill Oil Company | St Louis, OK 74866 | Oil & Gas Operator | Jun 2025 |
| 32 | Lake Country Disposal II LLC | Wilson, OK 73463 | Oil Operator | Jul 2025 |
| 33 | Lake Country Disposal LLC | Ardmore, OK 73401 | Oil Operator | Oct 2024 |
| 34 | Lake Ronel Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Jul 2017 |
| 35 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 36 | Lakeshore Operating, LLC | Wichita, KS 67203 | Oil & Gas Operator | Oct 2025 |
| 37 | Lakewood Disposal LLC | Tulsa, OK 74136-1031 | Oil Operator | Aug 2018 |
| 38 | Lakewood Energy Solutions LLC | | Oil Operator | Jun 2016 |
| 39 | Lakewood Oil Company LLC | Mission Hills, KS 66208-2735 | Oil & Gas Operator | May 2013 |
| 40 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 41 | Lam Financial Holdings LTD | Greenwood VIllage, CO 80111 | Oil Operator | Jul 2025 |
| 42 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Jun 2025 |
| 43 | Lamb Alan L | Oklahoma City, OK 73120-7824 | Oil & Gas Operator | Feb 2020 |
| 44 | Lambdin William H | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 1998 |
| 45 | Lambert Company LLC | Healdton, OK 73438-0962 | Oil & Gas Operator | Jun 2025 |
| 46 | Lambert Company The | Healdton, OK 73438-0962 | Oil & Gas Operator | Feb 2023 |
| 47 | Lambert Oil & Gas LLC | Holdenville, OK 74848 | Oil & Gas Operator | May 2025 |
| 48 | Lamberton Oil Co Inc | Tulsa, OK 74107 | Oil & Gas Operator | May 2013 |
| 49 | Lamberton W J | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2015 |
| 50 | Lamima Corporation | Ardmore, OK 73401 | Oil Operator | Nov 1994 |
| 51 | Laml Compaines LLC | Cleveland, OK 74020 | Oil Operator | Jun 2025 |
| 52 | Lammerts Robert P | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2002 |
| 53 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | Jul 2025 |
| 54 | Lancer Energy Corporation | Oklahoma City, OK 73132-5903 | Oil & Gas Operator | May 2015 |
| 55 | Lancer Petroleum Corporation | Irving, TX 75014 | Oil & Gas Operator | Feb 2014 |
| 56 | Landers & Musgrove | Okemah, OK 74859 | Oil & Gas Operator | Mar 2015 |
| 57 | Landers & Musgrove Oil Co. Inc | Okemah, OK 74859-0266 | Oil & Gas Operator | Jan 2018 |
| 58 | Landers & Waldman Inc | Okemah, OK 74859-0660 | Oil & Gas Operator | May 2013 |
| 59 | Landers Oil & Gas Inc | Tulsa, OK 74132-2171 | Oil & Gas Operator | Jun 2025 |
| 60 | Landers Production Company | Granite, OK 73547-0093 | Oil Operator | Apr 2014 |
| 61 | Landmark Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | Jun 2025 |
| 62 | Landmark Exploration Co | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2013 |
| 63 | Landmark Operating Company | Welty, OK 74833-3923 | Oil Operator | Aug 2015 |
| 64 | Landmark Production Company | MC Gregor, TX 76657 | Oil & Gas Operator | Oct 2010 |
| 65 | Langham Petroleum Expl. Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 2009 |
| 66 | Langley Harold | Graham, OK 73437 | Oil Operator | Jun 2025 |
| 67 | Lansden Operating Co LLC | Norman, OK 73070 | Oil & Gas Operator | Dec 1997 |
| 68 | Lapetco Inc | Plano, TX 75093 | Oil & Gas Operator | Aug 2024 |
| 69 | Lar-Mie Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Aug 1998 |
| 70 | Laran Operating LLC | Dover, OK 73734-0057 | Oil & Gas Operator | Mar 2015 |
| 71 | Laredo Petroleum, Inc. | Tulsa, OK 74120 | Oil & Gas Operator | Mar 2023 |
| 72 | Lariat Energy & Supply Co Inc | Hulbert, OK 74441 | Oil & Gas Operator | Jun 2025 |
| 73 | Lariat Petroleum Inc | Tulsa, OK 74119 | Oil & Gas Operator | Sep 2024 |
| 74 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Oct 2025 |
| 75 | Larkin Energy Company Inc | Sasakwa, OK 74867 | Oil & Gas Operator | May 2022 |
| 76 | Larkin Oil Co | Sasakwa, OK 74867 | Oil & Gas Operator | Aug 2015 |
| 77 | Larkspur Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Jul 2025 |
| 78 | Larmore Jr James E | Bartlesville, OK 74006-8312 | Oil Operator | Mar 2017 |
| 79 | Larron Energy Corporation | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2015 |
| 80 | Larry Brown Dba Brown Oil Company | Ardmore, OK 73401 | Oil Operator | Apr 2015 |
| 81 | Larry Sherman Oil LLC | Chandler, OK 74834 | Oil & Gas Operator | Jun 2025 |
| 82 | Larry Wolff Dba Wolff'S Oilfield Service | Cushing, OK 74023-9789 | Oil & Gas Operator | Jul 2025 |
| 83 | Larson Exploration Company | Tulsa, OK 74136-4939 | Oil & Gas Operator | Jul 2016 |
| 84 | Larson Operating Company | Olmitz, KS 67564-8561 | Oil & Gas Operator | Dec 2019 |
| 85 | Las Colinas Oil Corp. | Irving, TX 75062 | Oil & Gas Operator | Mar 2015 |
| 86 | Lashley Oil Company Inc | Walters, OK 73572 | Oil Operator | Dec 2014 |
| 87 | Lasmo Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 88 | Last Run, LLC | Rillito, AZ 85246 | Oil & Gas Operator | May 2020 |
| 89 | Latex Petroleum Corp. | Houston, TX 77090 | Oil & Gas Operator | Aug 2012 |
| 90 | Latham Roger P C | Dallas, TX 75244 | Oil Operator | Apr 2015 |
| 91 | Latigo Drilling Corporation | Duncan, OK 73533 | Oil & Gas Operator | Jun 2025 |
| 92 | Latigo Oil & Gas, Inc. | Woodward, OK 73801 | Oil & Gas Operator | Jul 2025 |
| 93 | Latigo Petroleum, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Jun 2025 |
| 94 | Latigo Petroleum, LLC | Pampa, TX 79066 | Oil & Gas Operator | Oct 2025 |
| 95 | Lauck & Associates | Walnut Creek, CA 91789 | Oil & Gas Operator | Jun 2025 |
| 96 | Laughlin Jack D | Cushing, OK 74023 | Oil & Gas Operator | Sep 2016 |
| 97 | Laurco Energies,Inc | | Oil & Gas Operator | May 2025 |
| 98 | Laurel Operating Company, Inc. | Stillwater, OK 74074-3025 | Oil & Gas Operator | Jun 2025 |
| 99 | Laverty, Thomas R | | Oil & Gas Operator | Dec 2023 |
| 100 | Law E Edward | Newkirk, OK 74647-2056 | Oil Operator | May 2025 |