| 28601 | NUGENT-WHITMAN 5H | Tarrant County, TX | Gas Property | Jun 2026 |
| 28602 | NUMBAT | Brazos County, TX | Oil & Gas Property | May 2026 |
| 28603 | NUMEN LUMEN 775 | Yoakum County, TX | Oil & Gas Property | Jun 2026 |
| 28604 | NUMERO SEIS | Jim Hogg County, TX | Oil & Gas Property | Jun 2026 |
| 28605 | NUNLEY | Brazos County, TX | Oil & Gas Property | Jun 2026 |
| 28606 | NUNLEY | Moore County, TX | Gas Property | May 2026 |
| 28607 | NUNLEY ELMA | Stephens County, TX | Oil & Gas Property | Dec 2017 |
| 28608 | NUNN | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 28609 | NUNN ELIZABETH | Reagan County, TX | Oil & Gas Property | Sep 2024 |
| 28610 | NUNN-GANZE 18 | Reagan County, TX | Oil & Gas Property | Jun 2026 |
| 28611 | NUNNALLY | Eastland County, TX | Oil & Gas Property | Jun 2026 |
| 28612 | NUNNELY | Montague County, TX | Oil & Gas Property | Jun 2026 |
| 28613 | NUSBAUM | Hansford County, TX | Oil & Gas Property | Apr 2018 |
| 28614 | NUSBAUM | Hansford County, TX | Oil & Gas Property | Jun 2026 |
| 28615 | NUSSBAUM | Limestone County, TX | Oil & Gas Property | Jun 2026 |
| 28616 | NUTE | Winkler County, TX | Oil & Gas Property | Jun 2026 |
| 28617 | NUTRIA 57-1-16 UNIT | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 28618 | NUTSHELL 403 | Yoakum County, TX | Oil & Gas Property | Jun 2026 |
| 28619 | NUTT | Hood County, TX | Oil & Gas Property | Jun 2026 |
| 28620 | NUTT | Glasscock County, TX | Oil & Gas Property | Jun 2025 |
| 28621 | NUTT | Irion County, TX | Oil & Gas Property | Sep 2021 |
| 28622 | NUTT | Pecos County, TX | Oil & Gas Property | Jun 2026 |
| 28623 | NUTT MOZELLE | Concho County, TX | Oil & Gas Property | Jun 2026 |
| 28624 | NUTT RANCH | Pecos County, TX | Oil & Gas Property | Jun 2026 |
| 28625 | NW MERCADO | Tarrant County, TX | Gas Property | May 2025 |
| 28626 | NW OLDENBURG AMARADO UNIT | Fayette County, TX | Oil & Gas Property | Jun 2026 |
| 28627 | NW TARRANT PARTNERS | Tarrant County, TX | Gas Property | Jun 2026 |
| 28628 | NWR WEST | Atascosa County, TX | Oil & Gas Property | Jun 2026 |
| 28629 | NYALA 53-2-5 LOV | Loving County, TX | Oil & Gas Property | Jun 2026 |
| 28630 | NYALA UNIT 9 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 28631 | NYE 3H | La Salle County, TX | Gas Property | Jun 2026 |
| 28632 | NYE-WILLIE PSA | La Salle County, TX | Gas Property | Jun 2026 |
| 28633 | NYQUIST 25 STATE UNIT | Culberson County, TX | Oil & Gas Property | Jun 2026 |
| 28634 | NYSEWANDER | Ector County, TX | Oil & Gas Property | Jun 2026 |
| 28635 | NYSTEL | Terry County, TX | Oil & Gas Property | Jun 2026 |
| 28636 | O BRIEN DL | Grimes County, TX | Oil & Gas Property | Jan 2024 |
| 28637 | O BRIEN G.W | Ward County, TX | Oil & Gas Property | Jun 2026 |
| 28638 | O BRIEN REID UNIT 1 | Tyler County, TX | Oil & Gas Property | Jun 2026 |
| 28639 | O BYRNE EVA | Upshur County, TX | Oil & Gas Property | Jun 2026 |
| 28640 | O DOWD | Johnson County, TX | Oil & Gas Property | May 2026 |
| 28641 | O M KEENEY | Coke County, TX | Oil & Gas Property | Oct 2017 |
| 28642 | O NEAL G | Leon County, TX | Oil & Gas Property | Jun 2026 |
| 28643 | O REAR | Shelby County, TX | Oil & Gas Property | Jun 2026 |
| 28644 | O-V-W FLIPPEN SAND UNIT | Taylor County, TX | Oil & Gas Property | Jun 2026 |
| 28645 | O. BORCHERS | Gonzales County, TX | Oil & Gas Property | Jun 2026 |
| 28646 | O. C. ROGERS CONNER 54 | Ochiltree County, TX | Oil & Gas Property | May 2026 |
| 28647 | O. H. MCALISTER | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 28648 | O. S. RANCH A | Garza County, TX | Oil & Gas Property | Jun 2026 |
| 28649 | O.A. LAMPLEY G | Lavaca County, TX | Oil & Gas Property | Jun 2026 |
| 28650 | O.B. BESS | Grimes County, TX | Oil & Gas Property | Sep 2001 |
| 28651 | O.B. HOLT | Ector County, TX | Oil & Gas Property | May 2017 |
| 28652 | O.B.T.C | Crockett County, TX | Oil & Gas Property | Jun 2026 |
| 28653 | O.G. ROGERS ESTATE | Anderson County, TX | Oil & Gas Property | Jun 2026 |
| 28654 | O.T. (ALLOCATION) | Brazos County, TX | Oil & Gas Property | May 2026 |
| 28655 | O.W. ALEXANDER | Panola County, TX | Oil & Gas Property | Jun 2026 |
| 28656 | OAK 55-1-30 UNIT 1H | Loving County, TX | Oil & Gas Property | Jun 2026 |
| 28657 | OAK 55-1-31-30 | Loving County, TX | Oil & Gas Property | Jun 2026 |
| 28658 | OAK GROVE UNIT | Tarrant County, TX | Gas Property | Jun 2026 |
| 28659 | OAK HILL GAS UNIT | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 28660 | OAK ISLAND A | Bexar County, TX | Oil & Gas Property | Jun 2026 |
| 28661 | OAK STATE UNIT | Reeves County, TX | Gas Property | May 2026 |
| 28662 | OAK VALLEY | Johnson County, TX | Gas Property | Jun 2026 |
| 28663 | OAK VALLEY 2 | Dawson County, TX | Oil & Gas Property | Jun 2026 |
| 28664 | OAKES C.W. ESTATE | Limestone County, TX | Oil & Gas Property | Jun 2026 |
| 28665 | OAKES PAT GAS UNIT | Limestone County, TX | Oil & Gas Property | Jun 2026 |
| 28666 | OAKES T.C. ESTATE GAS UNIT | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 28667 | OAKES-TURNER GAS UNIT NO. 1 | Freestone County, TX | Oil & Gas Property | Jun 2026 |
| 28668 | OAKLAND CORP | Cass County, TX | Oil & Gas Property | Nov 2022 |
| 28669 | OAKLAND CORP WATERFLOOD UNIT | Cass County, TX | Oil & Gas Property | Apr 2026 |
| 28670 | OAKMONT | Dawson County, TX | Oil & Gas Property | Jun 2026 |
| 28671 | OAKMONT-SAWGRASS | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 28672 | OAKS | Johnson County, TX | Oil & Gas Property | May 2026 |
| 28673 | OAKS | Martin County, TX | Oil & Gas Property | Jun 2026 |
| 28674 | OAKS STATE | Andrews County, TX | Oil & Gas Property | Jun 2026 |
| 28675 | OAKWOOD | Tarrant County, TX | Gas Property | Jun 2026 |
| 28676 | OAKWOOD REALTY | Jefferson County, TX | Oil & Gas Property | Mar 2026 |
| 28677 | OASIS 9-16-33-40 | Mitchell County, TX | Oil & Gas Property | Jun 2026 |
| 28678 | OASIS UNIT | Karnes County, TX | Oil & Gas Property | Jun 2026 |
| 28679 | OATES | Limestone County, TX | Oil & Gas Property | Jun 2026 |
| 28680 | OATES | Hutchinson County, TX | Oil & Gas Property | Jun 2026 |
| 28681 | OATES | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 28682 | OATES G | Wise County, TX | Oil & Gas Property | Jun 2026 |
| 28683 | OATES J. S | Pecos County, TX | Oil & Gas Property | Mar 2026 |
| 28684 | OATES UNIT | Polk County, TX | Oil & Gas Property | Jun 2026 |
| 28685 | OATMAN | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 28686 | OATMAN | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 28687 | OATMAN STATE UNIT 11-14 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 28688 | OB H1 | Shelby County, TX | Gas Property | Jun 2026 |
| 28689 | OBANION | Harrison County, TX | Oil & Gas Property | Sep 2021 |
| 28690 | OBANION | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 28691 | OBANION | Harrison County, TX | Oil & Gas Property | Jul 2014 |
| 28692 | OBANION A | Harrison County, TX | Oil & Gas Property | Jan 2021 |
| 28693 | OBANION J. T. DR | Caldwell County, TX | Oil & Gas Property | Jun 2026 |
| 28694 | OBENHAUS | Colorado County, TX | Oil & Gas Property | Jun 2026 |
| 28695 | OBENHAUS | Wichita County, TX | Oil & Gas Property | Jun 2026 |
| 28696 | OBENHAUS | Wharton County, TX | Oil & Gas Property | Jun 2026 |
| 28697 | OBERHOLTZER | Upton County, TX | Oil & Gas Property | Jun 2026 |
| 28698 | OBERON | Gonzales County, TX | Oil & Gas Property | Jun 2026 |
| 28699 | OBN - SLAGLE UNIT | Montague County, TX | Oil & Gas Property | Jun 2026 |
| 28700 | OBN PAYNE | Montague County, TX | Oil & Gas Property | Feb 2021 |