| 20001 | Newport Operators, LLC | | Oil & Gas Operator | Jan 2019 |
| 20002 | Newstar Energy Of Texas L.L.C. | East Lansing, MI 48826 | Oil & Gas Operator | Mar 2008 |
| 20003 | Newstar Energy USA Inc | Thornville, OH 43076 | Oil & Gas Operator | Aug 2004 |
| 20004 | Newton Corp.,The | Dallas, TX 75251 | Oil & Gas Operator | Sep 2026 |
| 20005 | Newton Steve Drilling | Worland, WY 82401 | Oil Operator | Apr 2001 |
| 20006 | Newton, Richard R. | Wichita Falls, TX 76309 | Oil & Gas Operator | Nov 1996 |
| 20007 | Newton, W. F. | Conroe, TX 77305 | Oil & Gas Operator | Jun 1994 |
| 20008 | Newton, W. F. Estate Of | Conroe, TX 77305 | Oil & Gas Operator | Jan 2000 |
| 20009 | Newturn Oil Company | Houston, TX 77208 | Oil & Gas Operator | Jan 2004 |
| 20010 | Newwoods Petroleum LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2016 |
| 20011 | Nexco Inc | Oklahoma City, OK 73102-6801 | Oil & Gas Operator | Nov 2013 |
| 20012 | Nexen Oil & Gas USA, Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
| 20013 | Nexen Petroleum U.S.A. Inc. | Houston, TX 77024 | Oil & Gas Operator | Jul 2012 |
| 20014 | Nexstreem Corporation | | Oil & Gas Operator | Dec 2020 |
| 20015 | Nextgen Petroleum LLC | Lubbock, TX 79407 | Oil Operator | Jun 2026 |
| 20016 | Nextraction Energy Us Inc | Las Vegas, NV 89169 | Oil & Gas Operator | Feb 2018 |
| 20017 | Nexus Resources Corporation | Drumright, OK 74030 | Oil & Gas Operator | Jan 2013 |
| 20018 | Ney Oil Operations | | Oil Operator | Apr 1998 |
| 20019 | Neyer Oil Inc | | Oil & Gas Operator | Nov 1997 |
| 20020 | Neyman, Robert L. & Maureen J. | Batavia, NY 14020 | Gas Operator | Dec 2025 |
| 20021 | Neymeiyer John Oil Co | | Oil Operator | Dec 1998 |
| 20022 | NFC Petroleum Corporation | Tulsa, OK 74121 | Oil & Gas Operator | Jun 1996 |
| 20023 | Nfcda Energy LLC | Edmond, OK 73013 | Oil & Gas Operator | Jul 2026 |
| 20024 | NFR Bear Paw Basin, LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2013 |
| 20025 | NFR Energy, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2017 |
| 20026 | NGC Energy Company | | Oil & Gas Operator | May 1989 |
| 20027 | Ngezi, LCC | Fort Worth, TX 76111 | Oil & Gas Operator | Sep 2026 |
| 20028 | NGL Processing, LLC | | Oil Operator | Jun 2000 |
| 20029 | NGM Noble LTD | Wooster, OH 44691 | Oil & Gas Operator | Dec 2025 |
| 20030 | Ngo Development Corp. | Newark, OH 43055 | Oil & Gas Operator | Dec 2025 |
| 20031 | NGX Company | Roswell, NM 88202 | Oil & Gas Operator | Jul 2008 |
| 20032 | NHH Inc | Oklahoma City, OK 73162-7418 | Oil & Gas Operator | Feb 2002 |
| 20033 | NHRG Inc | Wichita Falls, TX 76308 | Oil Operator | Sep 2026 |
| 20034 | Nicco Operating Co. | | Oil & Gas Operator | May 1990 |
| 20035 | Nicholas Water Service, Inc. | Zenda, KS 67159 | Oil Operator | Mar 2006 |
| 20036 | Nichols Brothers | Abilene, TX 79604 | Oil & Gas Operator | Sep 2026 |
| 20037 | Nichols Fluid Service, Inc. | Liberal, KS 67901 | Oil Operator | Jun 2019 |
| 20038 | Nichols Oil & Gas Corporation | Shreveport, LA 71135 | Oil & Gas Operator | Aug 2003 |
| 20039 | Nichols Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Sep 2026 |
| 20040 | Nichols Oil Corp. | Holcomb, KS 67846 | Oil Operator | Dec 1994 |
| 20041 | Nichols Operating LLC | Fort Branch, IN 47648 | Oil & Gas Operator | Dec 2024 |
| 20042 | Nichols Water Service Inc | Forgan, OK 73938 | Oil & Gas Operator | May 2018 |
| 20043 | Nichols, Carl E. | Azle, TX 76098 | Oil & Gas Operator | Aug 2004 |
| 20044 | Nichols, Irl. A. Trust B | Duncan, OK 73534 | Oil & Gas Operator | Sep 2000 |
| 20045 | Nichols, John Wesley | Little Elm, TX 75068 | Oil & Gas Operator | Jul 2011 |
| 20046 | Nichols,Edwin S Explorations Inc | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 20047 | Nick Oil | Abilene, TX 79601 | Oil & Gas Operator | Sep 2026 |
| 20048 | Nickell & Son Oil & Salvage | Parker, KS 66072 | Oil Operator | Aug 2006 |
| 20049 | Nickell Drilling | | Oil Operator | Jun 2010 |
| 20050 | Nickell Oil Company | Walters, OK 73572 | Oil Operator | Apr 2018 |
| 20051 | Nickerson, Royal | Clymer, NY 14724 | Gas Operator | Dec 2025 |
| 20052 | Nicki T Oil & Gas LLC | Midland, TX 79711 | Oil Operator | Sep 2026 |
| 20053 | Nickle Audrey O | Okmulgee, OK 74447-2823 | Oil & Gas Operator | Apr 2020 |
| 20054 | Nicklos Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Nov 1986 |
| 20055 | Nicolaysen G G Jr | | Oil & Gas Operator | Dec 1995 |
| 20056 | Nicor Exploration | | Oil Operator | Jul 1993 |
| 20057 | Nicor Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 20058 | Nicor Production Company | Houston, TX 77002 | Oil & Gas Operator | May 1993 |
| 20059 | Nicor Supply Company | Golden, CO 80401 | Oil & Gas Operator | Jun 1993 |
| 20060 | Niedorf, Patrick Stephen | San Antonio, TX 78239 | Oil Operator | Jul 2001 |
| 20061 | Niefergold, Martin & Suzanne | Lawtons, NY 14091 | Gas Operator | Dec 2025 |
| 20062 | Niehage Oil Company, LLC | McPherson, KS 67460 | Oil Operator | Apr 2026 |
| 20063 | Nielco, Inc. | Billings, MT 59103 | Oil & Gas Operator | Apr 2002 |
| 20064 | Nielson & Associates, Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
| 20065 | Nielson Capital Partners LLC | Cody, WY 82414 | Oil & Gas Operator | Dec 2014 |
| 20066 | Nielson Enterpri | | Oil & Gas Operator | Sep 1987 |
| 20067 | Nieset Lawrence & Christopher | Helena, OH 43435 | Oil Operator | Dec 2025 |
| 20068 | Night Owl Well Service | Cairo, WV 263370000 | Oil & Gas Operator | Dec 2021 |
| 20069 | Nightengale Henr | | Gas Operator | Nov 1996 |
| 20070 | Nighthawk Production LLC | | Oil & Gas Operator | May 2016 |
| 20071 | Nijean, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Feb 2012 |
| 20072 | Nimrod Petroleum Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Dec 2002 |
| 20073 | Nine Point Energy, LLC | | Oil & Gas Operator | Oct 2021 |
| 20074 | Nineveh Corp. | Dallas, TX 75208 | Oil & Gas Operator | Sep 2026 |
| 20075 | Nip-N-Tuck Minerals, Inc. | | Gas Operator | Feb 1988 |
| 20076 | Nippon Oil Exploration USA LTD | | Oil & Gas Operator | Dec 2010 |
| 20077 | Nisrol, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Sep 2018 |
| 20078 | Nitcher, Benton L. | Wellsville, KS 66092 | Oil & Gas Operator | Dec 1995 |
| 20079 | Nitro Energy, Inc. | | Gas Operator | Dec 2005 |
| 20080 | Nitro Oil & Gas, LLC | Cuero, TX 77954 | Oil & Gas Operator | Sep 2026 |
| 20081 | Nitro Petroleum Inc | Phoenix, AZ 85016-4599 | Oil & Gas Operator | May 2020 |
| 20082 | Nitro-Lift/Oklahoma Manufacturing LLC | Mill Creek, OK 74856 | Oil Operator | Sep 2026 |
| 20083 | Nitschke, Dan E. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2026 |
| 20084 | Nivens Productions LLC | Coyle, OK 73027-9785 | Oil & Gas Operator | Aug 2024 |
| 20085 | Nix, Tommy | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 20086 | Nixon Properties Inc | Tulsa, OK 74104 | Oil & Gas Operator | Aug 2023 |
| 20087 | Nixon R P Operat | | Oil Operator | Aug 1995 |
| 20088 | Nizen, Stanley | FT Stockton, TX 79735 | Oil & Gas Operator | May 2002 |
| 20089 | Nja Operating LLC | Perryton, TX 79070 | Oil & Gas Operator | Sep 2026 |
| 20090 | Nject Disposal LLC | Houston, TX 77027 | Oil Operator | Mar 2017 |
| 20091 | NJL Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Feb 2007 |
| 20092 | Njre Operating Company | Tulsa, OK 74119 | Gas Operator | Dec 2016 |
| 20093 | NKC Energy, LLC | Bruceville, TX 76630 | Oil Operator | Sep 2026 |
| 20094 | NLC Newstead Holdings LLC | Akron, NY 14001 | Gas Operator | Dec 2025 |
| 20095 | NM&O Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 20096 | NMR Energy LLC | Houston, TX 77063 | Oil & Gas Operator | Sep 2026 |
| 20097 | NMT Oil Company Inc. | | Oil & Gas Operator | Jul 2026 |
| 20098 | Nnogc Exploration & Production, LLC | Window Rock, AZ 86515 | Oil & Gas Operator | Jul 2026 |
| 20099 | Noah, Calvin | Valley Center, KS 67147 | Oil Operator | Oct 2010 |
| 20100 | Noarko Resources | | Oil & Gas Operator | Mar 1990 |