| 20201 | NHRG Inc | Wichita Falls, TX 76308 | Oil Operator | Nov 2024 |
| 20202 | Nicco Operating Co. | | Oil & Gas Operator | May 1990 |
| 20203 | Nicholas Water Service, Inc. | Zenda, KS 67159 | Oil Operator | Mar 2006 |
| 20204 | Nichols Brothers | Abilene, TX 79604 | Oil & Gas Operator | Nov 2024 |
| 20205 | Nichols Fluid Service, Inc. | Liberal, KS 67901 | Oil Operator | Jun 2019 |
| 20206 | Nichols Oil & Gas Corporation | Shreveport, LA 71135 | Oil & Gas Operator | Aug 2003 |
| 20207 | Nichols Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Nov 2024 |
| 20208 | Nichols Oil Corp. | Holcomb, KS 67846 | Oil Operator | Dec 1994 |
| 20209 | Nichols Operating LLC | Fort Branch, IN 47648 | Oil & Gas Operator | Dec 2021 |
| 20210 | Nichols P B | | Oil & Gas Operator | Nov 2019 |
| 20211 | Nichols Water Service Inc | Forgan, OK 73938 | Oil & Gas Operator | May 2018 |
| 20212 | Nichols, Carl E. | Azle, TX 76098 | Oil & Gas Operator | Aug 2004 |
| 20213 | Nichols, Irl. A. Trust B | Duncan, OK 73534 | Oil & Gas Operator | Sep 2000 |
| 20214 | Nichols, John Wesley | Little Elm, TX 75068 | Oil & Gas Operator | Jul 2011 |
| 20215 | Nichols, Manford, A General Partnership | Sublette, KS 67877 | Gas Operator | Jul 2024 |
| 20216 | Nichols,Edwin S Explorations Inc | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 20217 | Nick Oil | Abilene, TX 79601 | Oil & Gas Operator | Nov 2024 |
| 20218 | Nickel Road Operating LLC | | Oil & Gas Operator | Aug 2024 |
| 20219 | Nickell & Son Oil & Salvage | Parker, KS 66072 | Oil Operator | Aug 2006 |
| 20220 | Nickell Drilling | | Oil Operator | Jun 2010 |
| 20221 | Nickell Oil Company | Walters, OK 73572-3770 | Oil Operator | Apr 2018 |
| 20222 | Nickerson, Royal | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 20223 | Nicki T Oil & Gas LLC | Midland, TX 79711 | Oil Operator | Nov 2024 |
| 20224 | Nickle Audrey O | Okmulgee, OK 74447-2823 | Oil & Gas Operator | Apr 2020 |
| 20225 | Nicklos Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Nov 1986 |
| 20226 | Nicolaysen G G Jr | | Oil & Gas Operator | Dec 1995 |
| 20227 | Nicor Exploration | | Oil Operator | Jul 1993 |
| 20228 | Nicor Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 20229 | Nicor Production Company | Houston, TX 77002 | Oil & Gas Operator | May 1993 |
| 20230 | Nicor Supply Company | Golden, CO 80401 | Oil & Gas Operator | Jun 1993 |
| 20231 | Niedorf, Patrick Stephen | San Antonio, TX 78239 | Oil Operator | Jul 2001 |
| 20232 | Niefergold, Martin & Suzanne | Lawtons, NY 14091 | Gas Operator | Dec 2023 |
| 20233 | Niehage Oil Company, LLC | McPherson, KS 67460 | Oil Operator | May 2024 |
| 20234 | Nielco, Inc. | Billings, MT 59103 | Oil & Gas Operator | Apr 2002 |
| 20235 | Nielson & Associates Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
| 20236 | Nielson Capital Partners LLC | Cody, WY 82414 | Oil & Gas Operator | Dec 2014 |
| 20237 | Nielson Enterpri | | Oil & Gas Operator | Sep 1987 |
| 20238 | Nieset Lawrence & Christopher | Helena, OH 43435 | Oil Operator | Dec 2023 |
| 20239 | Night Owl Well Service | Cairo, WV 26337-0000 | Oil & Gas Operator | Dec 2021 |
| 20240 | Nighthawk Production LLC | | Oil & Gas Operator | Jun 2018 |
| 20241 | Nijean, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Feb 2012 |
| 20242 | Nimrod Petroleum Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Dec 2002 |
| 20243 | Nine Point Energy, LLC | | Oil & Gas Operator | Oct 2021 |
| 20244 | Nineveh Corp. | Dallas, TX 75208 | Oil & Gas Operator | Nov 2024 |
| 20245 | Niobrara Illuminating Gas Associates LLC | | Oil & Gas Operator | Oct 2009 |
| 20246 | Nip-N-Tuck Minerals, Inc. | | Gas Operator | Feb 1988 |
| 20247 | Nippon Oil Exploration USA LTD | | Oil & Gas Operator | Dec 2010 |
| 20248 | Nisrol, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Sep 2018 |
| 20249 | Nitcher, Benton L. | Wellsville, KS 66092 | Oil & Gas Operator | Dec 1995 |
| 20250 | Nitro Energy, Inc. | | Gas Operator | Dec 2005 |
| 20251 | Nitro Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 20252 | Nitro Petroleum Inc | Phoenix, AZ 85016-4599 | Oil & Gas Operator | May 2020 |
| 20253 | Nitschke, Dan E. | Henrietta, TX 76365 | Oil & Gas Operator | Nov 2024 |
| 20254 | Nivens Productions LLC | Coyle, OK 73027-9785 | Oil & Gas Operator | Aug 2024 |
| 20255 | Nix, Tommy | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 20256 | Nixon Properties Inc | Tulsa, OK 74104 | Oil & Gas Operator | Aug 2023 |
| 20257 | Nixon R P Operat | | Oil Operator | Aug 1995 |
| 20258 | Nizen, Stanley | FT Stockton, TX 79735 | Oil & Gas Operator | May 2002 |
| 20259 | Nja Operating LLC | Perryton, TX 79070 | Oil & Gas Operator | Nov 2024 |
| 20260 | Nject Disposal LLC | Houston, TX 77027 | Oil Operator | Mar 2017 |
| 20261 | NJL Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Feb 2007 |
| 20262 | Njre Operating Company | Tulsa, OK 74119 | Gas Operator | Dec 2016 |
| 20263 | NKC Energy, LLC | Bruceville, TX 76630 | Oil Operator | Nov 2024 |
| 20264 | NLC Newstead Holdings LLC | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 20265 | NM&O Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Aug 2024 |
| 20266 | NMR Energy LLC | Houston, TX 77063 | Oil & Gas Operator | Nov 2024 |
| 20267 | NMT Oil Company Inc. | | Oil & Gas Operator | Sep 2024 |
| 20268 | Nnogc Exploration & Production, LLC | Window Rock, AZ 86515 | Oil & Gas Operator | Aug 2024 |
| 20269 | Noah, Calvin | Valley Center, KS 67147 | Oil Operator | Oct 2010 |
| 20270 | Noarko Resources | | Oil & Gas Operator | Mar 1990 |
| 20271 | Nobbs, Gary H. And Bosinski, Kathy | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 20272 | Nobel Petroleum USA Inc. | League City, TX 77573 | Oil Operator | Nov 2024 |
| 20273 | Noble & Cantrell Expl. Co., Inc. | Winnsboro, TX 75494 | Oil & Gas Operator | Aug 2006 |
| 20274 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
| 20275 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Nov 2024 |
| 20276 | Noble Exploration, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Aug 2003 |
| 20277 | Noble Gas Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 1997 |
| 20278 | Noble Oil Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1996 |
| 20279 | Noble Operating Company Inc | Garden City, KS 67846 | Oil & Gas Operator | Sep 2014 |
| 20280 | Noble Operating, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Sep 2013 |
| 20281 | Noble Petroleum LLC | Lower Salem, OH 45745-9648-9648 | Oil & Gas Operator | Dec 2023 |
| 20282 | Noble Petroleum, Inc. | Wichita, KS 67205 | Oil Operator | Sep 2013 |
| 20283 | Noble Producing Company Inc. | Dallas, TX 75244 | Oil & Gas Operator | Mar 1996 |
| 20284 | Noble Resources Inc | Mannford, OK 74044 | Oil & Gas Operator | Sep 2024 |
| 20285 | Noble, Alton L | Westfield, NY 14787 | Gas Operator | Dec 2023 |
| 20286 | Nobleson Operating, Inc. | Dallas, TX 75244 | Oil & Gas Operator | Jun 1996 |
| 20287 | Noc | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2020 |
| 20288 | Noco Investment Company Inc | Tulsa, OK 74159-0470 | Oil & Gas Operator | Mar 2005 |
| 20289 | Nodding Donkey Production | Pampa, TX 79065 | Oil & Gas Operator | Nov 2024 |
| 20290 | Noe And Woods, Et Al | | Gas Operator | Jan 2008 |
| 20291 | Noe, T. C. Oil Acct. | Selman City, TX 75689 | Oil & Gas Operator | May 1996 |
| 20292 | Noel Operating, Inc. | Huntsville, TX 77340 | Oil & Gas Operator | Oct 2000 |
| 20293 | Noex, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Apr 1998 |
| 20294 | Nog Production & Operating LLC | Goliad, TX 77963 | Oil & Gas Operator | Nov 2024 |
| 20295 | Nogp Operating Company Inc | Frisco, TX 75033 | Oil & Gas Operator | Sep 2024 |
| 20296 | Noir-Blanc | Russell, KS 67665 | Oil Operator | May 1992 |
| 20297 | Nokota Energy Corporation | Bakersfield, CA 93313 | Oil Operator | Nov 2024 |
| 20298 | Nokusu, LTD. | Dallas, TX 75231 | Oil & Gas Operator | Sep 2008 |
| 20299 | Nolen Oil & Gas | Beeville, TX 78102 | Oil & Gas Operator | Nov 2024 |
| 20300 | Nolen, Charles R. | San Angelo, TX 76904 | Oil & Gas Operator | Dec 2006 |