| McClellan-Wilson O-13-26925 | Corda Corporation only | Lawler (Chappel) | Hardeman | 1 | 409K | 19 | by Jan 1993 – Aug 2026 |
| McClellan, Joe O-13-29389 | Corda Corporation only | Medicine Mounds, SE (Miss) | Hardeman | 1 | 323K | 0 | Sep 1997 – Aug 2026 |
| McClellan B O-13-27019 | Decleva, Paul only | Lawler (Chappel) | Hardeman | 1 | 71.2K | 19 | by Jan 1993 – Dec 2014 |
| McClellan-Swofford Unit O-13-30128 | Corda Corporation only | Medicine Mounds, SE (Miss) | Hardeman | 1 | 57.8K | 0 | Feb 2003 – Aug 2026 |
| McClellan, Joe D. O-13-12862 | Buffco Production Inc. only | Medicine Mounds (Congl. 7430) | Hardeman | 2 | 49.7K | 21 | by Jan 1993 – Aug 2026 |
| McClellan /S & T/ O-1-1210 | Can't Complain Operating Co. only | Minerva-Rockdale | Milam | 22 | 41.3K | 100 | by Jan 1993 – Aug 2026 |
| McClellan, Joe D. O-13-12236 | Buffco Production Inc. only | Medicine Mounds (Miss.) | Hardeman | 1 | 37.1K | 21 | by Jan 1993 – Jul 2016 |
| Percival O-14-97 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 5 | 35.4K | 51.8K | by Jan 1993 – Aug 2026 |
| Moore-Langdon O-14-703 | McClelland Creek Properties,inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 9 | 27.6K | 41.3K | by Jan 1993 – Mar 2024 |
| Pitcher O-14-959 | McClelland Creek Properties,inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 13 | 23.9K | 81.6K | by Jan 1993 – Mar 2024 |
| McClellan O-13-30491 | Buffco Production Inc. only | Medicine Mounds (Congl. 7430) | Hardeman | 1 | 19.7K | 0 | Sep 2004 – Aug 2026 |
| Percival -A- O-14-32 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 2 | 18.2K | 18.8K | by Jan 1993 – Aug 2026 |
| McClellan "A" O-14-5377 | Sandlot Oil & Gas LLC only | Gruver, NW (Morrow, UP) | Hansford | 1 | 17.8K | 13K | by Jan 1993 – Aug 2026 |
| McClellan O-13-34258 | Trio Consulting & Management,llc only | Searcys (Miss) | Hardeman | 1 | 17.6K | 0 | Jan 2024 – Aug 2026 |
| Heidaja O-14-4824 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 3 | 14.8K | 1.02M | by Jan 1993 – Jul 2026 |
| Sheridan O-14-4802 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 2 | 14.6K | 410K | by Jan 1993 – Jul 2024 |
| Chrisga O-14-4759 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 8 | 14.6K | 545K | by Jan 1993 – Aug 2026 |
| Langham O-14-4862 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 1 | 13.8K | 77.9K | by Jan 1993 – Jul 2026 |
| Percival-Gamar O-14-173 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 2 | 13.4K | 42.6K | by Jan 1993 – Aug 2026 |
| McClellan -C- O-1-1209 | Can't Complain Operating Co. only | Minerva-Rockdale | Milam | 9 | 10.9K | 100 | by Jan 1993 – Jul 2026 |
| Block, B. F. O-14-76 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 3 | 10.2K | 56.8K | by Jan 1993 – Aug 2026 |
| Benedict O-14-3416 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 1 | 9.94K | 21 | by Jan 1993 – Aug 2026 |
| Kajanca O-14-4751 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 6 | 9.84K | 471K | by Jan 1993 – Aug 2026 |
| McCray, C. E., et UX O-14-1564 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 5 | 9.26K | 199K | by Jan 1993 – Jun 2026 |
| Stevenson, Mittie O-14-1341 | McClelland Creek Properties,inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 5 | 9.11K | 235K | by Jan 1993 – Sep 2025 |
| McClellan-Phillips O-13-29790 | Ashtola Exploration Company,inc. only | Kadane Cato (Congl) | Hardeman | 1 | 8.7K | 16.7K | Aug 2000 – Sep 2002 |
| Cobb O-14-4965 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 3 | 8.66K | 614K | by Jan 1993 – Aug 2026 |
| McClelland O-2-9650 | Dewbre Petroleum Corporation only | Oakville (Pettus -C-) | Live Oak | 1 | 6.45K | 0 | Jul 2011 – Sep 2016 |
| McClelland, J.W. O-2-8070 | Samson Resources Company only | Limes (Wilcox 7900) | Live Oak | 1 | 6.42K | 2.35K | May 1994 – Oct 1994 |
| Percival, F. E. "B" O-14-4930 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 1 | 5.13K | 169 | by Jan 1993 – Aug 2026 |
| McClellan O-14-9741 | Questa Energy Corporation only | Gruver, NW (Morrow, UP) | Hansford | 1 | 4.8K | 3.61K | Mar 2021 – Aug 2026 |
| McClellan O-14-4597 | 4P Energy Texas, LLC only | Gruver, NW (Morrow, UP) | Hansford | 6 | 3.12K | 137K | by Jan 1993 – Jul 1997 |
| Noel, J. L. O-14-151 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 1 | 2.84K | 2.98K | by Jan 1993 – Aug 2026 |
| McClelland O-13-29458 | Pittman Operating Company only | Lester | Jack | 1 | 2.62K | 0 | Jan 1998 – Jan 2000 |
| McClellan O-13-21987 | S.B. Street Operating, Inc. only | Cottle (Bend Conglomerate) | Young | 1 | 1.93K | 56.1K | by Jan 1993 – Mar 2009 |
| Bivins O-14-5882 | McClelland Creek Properties,inc. only | Panhandle (Red Cave) | Moore | 7 | 1.26K | 60.8K | by Jan 1993 – Sep 1999 |
| McClellan-Wilson "S" O-13-25470 | Farrex, Inc. only | G.B.D. Hoc (Meramec) | Hardeman | 1 | 1.17K | 187 | by Jan 1993 – Apr 1994 |
| McClellan O-14-4293 | Jenex Operating Company of Texas only | Gruver, NW (Morrow, UP) | Hansford | 1 | 893 | 14 | by Jan 1993 – Feb 1994 |
| McClelland O-13-32832 | Borderline Operating Corp. only | KRS (Marble Falls) | Jack | 1 | 607 | 33.3K | Dec 2013 – Oct 2016 |
| McClellan O-14-4682 | Samson Resources Company only | Gruver, NW (Morrow, UP) | Hansford | 1 | 13 | 3.82K | by Jan 1993 – Aug 1993 |
| McClelland Miller O-2-6538 | Holm, Larry E. only | Sunset (Wilcox 7900) | Live Oak | 1 | 0 | 0 | — |
| McClelland, Josephine West O-2-4817 | Mangum, Inc. only | Albert, West (5800) | — | 0 | 0 | 0 | — |
| Hbjv-McClellan O-13-27283 | Buffco Production Inc. only | Berry, West (Congl 7400) | Hardeman | 1 | 0 | 0 | — |
| McClelland, Josephine West O-2-4877 | Mangum, Inc. only | Albert, West (5300) | — | 0 | 0 | 0 | — |
| McClelland, W. R., et al Unit #1 O-6-5626 | R&F Operating Company only | Center (Saratoga) | Shelby | 1 | 0 | 0 | — |
| Sheridan #2 O-14-4719 | McClelland Creek Properties,inc. only | Panhandle Gray County Field | Gray | 4 | 0 | 0 | — |
| Percival, F. E. O-14-152 | McClelland Creek Properties,inc. only | Panhandle Carson County Field | Carson | 1 | 0 | 0 | — |