| 19901 | Newcastle Oil & Gas Inc | | Oil Operator | Dec 1988 |
| 19902 | Newcastle Resources, LLC | Tyler, TX 75711 | Oil & Gas Operator | Aug 2015 |
| 19903 | Newco Inc | Oklahoma City, OK 73177 | Oil Operator | Aug 1999 |
| 19904 | Newco Oil And Gas, LLC | McKinney, TX 75070 | Oil Operator | Jun 2026 |
| 19905 | Newell Energy LTD | | Gas Operator | Nov 2021 |
| 19906 | Newell Oil And Gas LLC | Shawnee, OK 74801-5783 | Oil & Gas Operator | Mar 2026 |
| 19907 | Newfield Expl. Mid-Con. Inc | Tulsa, OK 74172 | Oil & Gas Operator | Jan 2015 |
| 19908 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 19909 | Newfield Exploration Mid-Continent, Inc | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2011 |
| 19910 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
| 19911 | Newgulf Petroleum, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2017 |
| 19912 | Newhaven Operating Inc | | Oil & Gas Operator | Dec 1998 |
| 19913 | Newkumet Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 19914 | Newland Farm | Freedom, NY 14065 | Gas Operator | Dec 2024 |
| 19915 | Newland Oil Comp | | Oil Operator | Sep 1996 |
| 19916 | Newman & Scott | Duncan, OK 73534 | Oil & Gas Operator | Mar 2024 |
| 19917 | Newman Bros Drilling | | Oil & Gas Operator | Apr 2004 |
| 19918 | Newman Corporation | Harleton, TX 75651 | Oil & Gas Operator | Aug 2024 |
| 19919 | Newman Cubed, Inc. | Fort Worth, TX 76147 | Oil & Gas Operator | Jun 2026 |
| 19920 | Newman Operating Company | Freer, TX 78357 | Oil & Gas Operator | Jun 2021 |
| 19921 | Newman, John A. | Joplin, MO 64804 | Oil & Gas Operator | Jan 2001 |
| 19922 | Newmont Oil Company | | Oil & Gas Operator | Sep 1988 |
| 19923 | Newpark Drilling Fluids LLC | Clinton, OK 73601 | Oil Operator | Dec 2013 |
| 19924 | Newpark Environmental SVCS LLC | Lafayette, LA 70506 | Oil Operator | Jul 2014 |
| 19925 | Newpek, LLC | Irving, TX 75039 | Oil & Gas Operator | Sep 2016 |
| 19926 | Newport Gas Partners LLC | Gillette, WY 82716 | Oil & Gas Operator | Oct 2025 |
| 19927 | Newport Oil Corporation | Clearwater, FL 33755 | Oil & Gas Operator | Jul 2011 |
| 19928 | Newport Operating, LLC | Burkburnett, TX 76354 | Oil Operator | Jun 2026 |
| 19929 | Newport Operators, LLC | | Oil & Gas Operator | Jan 2019 |
| 19930 | Newstar Energy Of Texas L.L.C. | East Lansing, MI 48826 | Oil & Gas Operator | Mar 2008 |
| 19931 | Newstar Energy USA Inc | Thornville, OH 43076 | Oil & Gas Operator | Aug 2004 |
| 19932 | Newton Corp.,The | Dallas, TX 75251 | Oil & Gas Operator | Jun 2026 |
| 19933 | Newton Steve Drilling | Worland, WY 82401 | Oil Operator | Apr 2001 |
| 19934 | Newton, Richard R. | Wichita Falls, TX 76309 | Oil & Gas Operator | Nov 1996 |
| 19935 | Newton, W. F. | Conroe, TX 77305 | Oil & Gas Operator | Jun 1994 |
| 19936 | Newton, W. F. Estate Of | Conroe, TX 77305 | Oil & Gas Operator | Jan 2000 |
| 19937 | Newturn Oil Company | Houston, TX 77208 | Oil & Gas Operator | Jan 2004 |
| 19938 | Newwoods Petroleum LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2016 |
| 19939 | Nexco Inc | Oklahoma City, OK 73102-6801 | Oil & Gas Operator | Nov 2013 |
| 19940 | Nexen Oil And Gas U.S.A. Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
| 19941 | Nexen Petroleum U.S.A. Inc. | Houston, TX 77024 | Oil & Gas Operator | Jul 2012 |
| 19942 | Nexstreem Corporation | | Oil & Gas Operator | Dec 2020 |
| 19943 | Nextgen Petroleum LLC | Lubbock, TX 79407 | Oil Operator | Mar 2026 |
| 19944 | Nextraction Energy Us Inc | Las Vegas, NV 89169 | Oil & Gas Operator | Feb 2018 |
| 19945 | Nexus Resources Corporation | Drumright, OK 74030 | Oil & Gas Operator | Jan 2013 |
| 19946 | Ney Oil Operations | | Oil Operator | Apr 1998 |
| 19947 | Neyer Oil Inc | | Oil & Gas Operator | Nov 1997 |
| 19948 | Neyman, Robert L. & Maureen J. | Batavia, NY 14020 | Gas Operator | Dec 2024 |
| 19949 | Neymeiyer John Oil Co | | Oil Operator | Dec 1998 |
| 19950 | NFC Petroleum Corporation | Tulsa, OK 74121 | Oil & Gas Operator | Jun 1996 |
| 19951 | Nfcda Energy LLC | Edmond, OK 73013 | Oil & Gas Operator | Mar 2026 |
| 19952 | NFR Bear Paw Basin, LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2013 |
| 19953 | NFR Energy, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2017 |
| 19954 | NGC Energy Company | | Oil & Gas Operator | May 1989 |
| 19955 | Ngezi, LCC | Fort Worth, TX 76111 | Oil & Gas Operator | Jun 2026 |
| 19956 | NGL Processing, LLC | | Oil Operator | Jun 2000 |
| 19957 | NGM Noble LTD | Wooster, OH 44691 | Oil & Gas Operator | Dec 2025 |
| 19958 | Ngo Development Corp. | Newark, OH 43055 | Oil & Gas Operator | Dec 2025 |
| 19959 | NGX Company | Roswell, NM 88202 | Oil & Gas Operator | Jul 2008 |
| 19960 | NHH Inc | Oklahoma City, OK 73162-7418 | Oil & Gas Operator | Feb 2002 |
| 19961 | NHRG Inc | Wichita Falls, TX 76308 | Oil Operator | Jun 2026 |
| 19962 | Nicco Operating Co. | | Oil & Gas Operator | May 1990 |
| 19963 | Nicholas Water Service, Inc. | Zenda, KS 67159 | Oil Operator | Mar 2006 |
| 19964 | Nichols Brothers | Abilene, TX 79604 | Oil & Gas Operator | Jun 2026 |
| 19965 | Nichols Fluid Service, Inc. | Liberal, KS 67901 | Oil Operator | Jun 2019 |
| 19966 | Nichols Oil & Gas Corporation | Shreveport, LA 71135 | Oil & Gas Operator | Aug 2003 |
| 19967 | Nichols Oil Co. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2026 |
| 19968 | Nichols Oil Corp. | Holcomb, KS 67846 | Oil Operator | Dec 1994 |
| 19969 | Nichols Operating LLC | Fort Branch, IN 47648 | Oil & Gas Operator | Dec 2024 |
| 19970 | Nichols Water Service Inc | Forgan, OK 73938 | Oil & Gas Operator | May 2018 |
| 19971 | Nichols, Carl E. | Azle, TX 76098 | Oil & Gas Operator | Aug 2004 |
| 19972 | Nichols, Irl. A. Trust B | Duncan, OK 73534 | Oil & Gas Operator | Sep 2000 |
| 19973 | Nichols, John Wesley | Little Elm, TX 75068 | Oil & Gas Operator | Jul 2011 |
| 19974 | Nichols,Edwin S Explorations Inc | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 19975 | Nick Oil | Abilene, TX 79601 | Oil & Gas Operator | Jun 2026 |
| 19976 | Nickell & Son Oil & Salvage | Parker, KS 66072 | Oil Operator | Aug 2006 |
| 19977 | Nickell Drilling | | Oil Operator | Jun 2010 |
| 19978 | Nickell Oil Company | Walters, OK 73572 | Oil Operator | Apr 2018 |
| 19979 | Nickerson, Royal | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 19980 | Nicki T Oil & Gas LLC | Midland, TX 79711 | Oil Operator | Jun 2026 |
| 19981 | Nickle Audrey O | Okmulgee, OK 74447-2823 | Oil & Gas Operator | Apr 2020 |
| 19982 | Nicklos Oil & Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1986 |
| 19983 | Nicolaysen G G Jr | | Oil & Gas Operator | Dec 1995 |
| 19984 | Nicor Exploration | | Oil Operator | Jul 1993 |
| 19985 | Nicor Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 19986 | Nicor Production Company | Houston, TX 77002 | Oil & Gas Operator | May 1993 |
| 19987 | Nicor Supply Company | Golden, CO 80401 | Oil & Gas Operator | Jun 1993 |
| 19988 | Niedorf, Patrick Stephen | San Antonio, TX 78239 | Oil Operator | Jul 2001 |
| 19989 | Niefergold, Martin & Suzanne | Lawtons, NY 14091 | Gas Operator | Dec 2024 |
| 19990 | Niehage Oil Company, LLC | McPherson, KS 67460 | Oil Operator | Feb 2026 |
| 19991 | Nielco, Inc. | Billings, MT 59103 | Oil & Gas Operator | Apr 2002 |
| 19992 | Nielson & Associates, Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
| 19993 | Nielson Capital Partners LLC | Cody, WY 82414 | Oil & Gas Operator | Dec 2014 |
| 19994 | Nielson Enterpri | | Oil & Gas Operator | Sep 1987 |
| 19995 | Nieset Lawrence & Christopher | Helena, OH 43435 | Oil Operator | Dec 2025 |
| 19996 | Night Owl Well Service | Cairo, WV 26337-0000 | Oil & Gas Operator | Dec 2021 |
| 19997 | Nighthawk Production LLC | | Oil & Gas Operator | May 2016 |
| 19998 | Nijean, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Feb 2012 |
| 19999 | Nimrod Petroleum Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Dec 2002 |
| 20000 | Nine Point Energy, LLC | | Oil & Gas Operator | Oct 2021 |