| Chambers C G-14-111014 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 922 | 165K | by Jan 1993 – Jul 2003 |
| Chambers, Frank M. -B- G-14-67615 | Amoco Production Company only | Mendota, NW. (Granite Wash, SW.) | Roberts | 1 | 868 | 62.4K | by Jan 1993 – Oct 1997 |
| Humber O-8-29667 | DRH Properties LLC only | Chambers (Caddo) | Shackelford | 1 | 842 | 2.72K | Aug 2005 – Oct 2007 |
| Chambers "A" G-14-250774 | Unit Petroleum Company only | Mendota, N. (Morrow, Upper) | Roberts | 1 | 813 | 1.9M | Sep 2007 – Aug 2026 |
| Nason, R. V. O-13-19926 | C & S Chambers Oil only | Archer County Regular | Archer | 4 | 801 | 28 | by Jan 1993 – Nov 1997 |
| Chambers, Geo. W. G-13-22844 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 783 | 354K | by Jan 1993 – Aug 2026 |
| Chambers, Curtis O-8-25381 | Harris, George - Operator only | Brown County Regular | Brown | 1 | 757 | 17 | by Jan 1993 – Jun 2002 |
| McChambers G-8-201915 | G & F Oil, Inc. only | Lone Camp (Atoka Conglomerate) | Palo Pinto | 1 | 660 | 148K | Jan 2004 – Jan 2016 |
| Woolsey-Chambers G-13-155838 | Texxol Operating Company, Inc. only | Boonsville (Bend Congl., Gas) | Wise | 1 | 653 | 317K | Oct 1995 – Aug 2026 |
| Chambers, Frank M. et al -B- G-14-87649 | Amoco Production Company only | Mendota, NW. (Granite Wash, SW.) | Roberts | 1 | 648 | 63.3K | by Jan 1993 – Aug 1998 |
| Chambers County -C- School Land O-9-1021 | KDM Production Co only | Midway Lane (1300) | Crockett | 5 | 603 | 27 | by Jan 1993 – Jun 2012 |
| Chambers 119 O-14-9108 | Laddex, Ltd. only | St. Clair (Granite Wash) | Roberts | 1 | 567 | 200 | Feb 2014 – May 2015 |
| Chambers B O-9-17761 | Vanco Oil & Gas Corp. only | Midway Lane (1300) | Crockett | 1 | 565 | 0 | Apr 2012 – Apr 2019 |
| Chambers, O. W. G-5-167103 | XTO Energy Inc. only | Personville, N (CV Consolidated) | Limestone | 1 | 555 | 572K | Dec 1997 – Apr 2002 |
| Chambers B O-14-9693 | Blackbeard Operating, LLC only | Allen-Parker (Marmaton) | Roberts | 1 | 421 | 13.6K | Aug 2018 – Sep 2022 |
| Chambers, O.W. G-5-150847 | Hilcorp Energy Company only | Personville (Travis Peak) | Limestone | 1 | 401 | 829K | Jun 1994 – Apr 2004 |
| Chambers CSL O-9-12736 | Thompson, J. Cleo only | Midway Lane | Crockett | 1 | 380 | 11 | Feb 1993 – Mar 1994 |
| Chambers "B" O-8-19005 | Interstate Explorations LLC only | Brown County Regular | Brown | 5 | 370 | 12 | Feb 1993 – Aug 2026 |
| Chambers. O.W. G-5-192375 | Hilcorp Energy Company only | Personville (Travis Peak) | Limestone | 1 | 362 | 571K | Nov 2002 – Jul 2008 |
| Chambers, O.W. G-5-196254 | Hilcorp Energy Company only | Personville (Travis Peak) | Limestone | 1 | 343 | 648K | May 2003 – Oct 2008 |
| McChambers G-8-201678 | G & F Oil, Inc. only | Lone Camp (Atoka Conglomerate) | Palo Pinto | 1 | 313 | 73.4K | Jan 2004 – Aug 2013 |
| Chambers et Al G-13-91727 | Quest Petroleum Company only | Jupiter (Conglomerate 3RD) | Jack | 1 | 292 | 28K | by Jan 1993 – Jan 2021 |
| Chambers, O.W. G-5-189599 | Hilcorp Energy Company only | Personville (Travis Peak) | Limestone | 1 | 258 | 744K | Apr 2002 – Sep 2008 |
| Chambers G-14-114118 | Bce-Mach II LLC only | Rita Ranch (Morrow Upper) | Roberts | 1 | 238 | 412K | by Jan 1993 – Jun 1999 |
| Chambers, Frank "B" O-14-7173 | Amoco Production Company only | Chambers (Lower Douglas, Upper) | Roberts | 1 | 230 | 1.34K | Sep 1996 – Feb 1997 |
| Chambers G-14-149309 | Seagull Energy E&P Inc. only | Mendota, NW. (Granite Wash, SW.) | Roberts | 1 | 211 | 19.4K | Apr 1994 – Jul 1998 |
| Chambers, C. C. G-13-150031 | General Operating Company only | Jack County Regular | Jack | 1 | 210 | 64.1K | Jun 1994 – Nov 2023 |
| Boyd-Eanes "B" O-3-11644 | Big Springs Energy Group, Inc. only | Chambers (Navarro) | Burleson | 2 | 189 | 373 | by Jan 1993 – Sep 1994 |
| Chambers "C" O-14-6560 | Seagull Midcon Inc. only | Mendota, NW. (Granite Wash, SW.) | Roberts | 1 | 179 | 20.7K | by Jan 1993 – Mar 1994 |
| Chambers 79 O-14-9812 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 163 | 197 | Apr 2025 – Aug 2026 |
| Chambers, Frank M. Etal "C" G-14-275631 | BP America Production Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 126 | 780 | Jun 2014 – Nov 2014 |
| Chambers G-14-73932 | Ridgeling Well Salvage only | Parsell, South (Morrow Lower) | Roberts | 1 | 91 | 104K | by Jan 1993 – Sep 1996 |
| Chambers, C. C. A O-13-23371 | General Operating Company only | Jack County Regular | Jack | 1 | 75 | 9.02K | by Jan 1993 – May 1994 |
| Helm A O-3-21878 | Big Springs Energy Group, Inc. only | Chambers (Navarro, Lower) | Burleson | 1 | 74 | 1 | Feb 1993 – Feb 1993 |
| Chambers, Frank M. et al "A" G-14-160812 | BP America Production Company only | Miami, N. (Douglas, Lo. -B-) | Roberts | 1 | 53 | 3.31K | Nov 1996 – Nov 2001 |
| Chambers, O. W. G-5-244058 | Hilcorp Energy Company only | Personville, N (CV Consolidated) | Limestone | 1 | 51 | 780K | Oct 2008 – Aug 2026 |
| Chambers G-13-194992 | Texxol Operating Company, Inc. only | Chico, West (Caddo Congl. Upper) | Wise | 1 | 41 | 30.3K | May 2003 – Sep 2015 |
| Chambers B G-14-294413 | Mmgl Txph, LLC only | Allen-Parker (Marmaton) | Roberts | 1 | 33 | 2.32K | Oct 2022 – Aug 2026 |
| Chambers CSL G-1 G-9-39495 | Kaiser-Francis Oil Company only | Midway Lane (Strawn) | Crockett | 1 | 28 | 50.4K | Dec 1996 – Mar 2015 |
| Chambers Ranch O-14-2562 | Alpar Resources, Inc. only | Mendota (Granite Wash) | Roberts | 1 | 27 | 43 | by Jan 1993 – Feb 1993 |
| Chambers CSL G-9-163087 | Venus Exploration, Inc. only | Vaughn (Clearfork) | Crockett | 1 | 22 | 14.6K | Apr 1997 – Jul 1998 |
| Chambers O-8-19540 | Spartan Oil Corporation only | Brown County Regular | Brown | 1 | 5 | 4 | by Jan 1993 – Apr 1993 |
| Chambers, Ressie G-8-72984 | Crt's, Inc. only | Foster (Marble Falls) | Eastland | 1 | 3 | 16.9K | by Jan 1993 – Jan 1996 |
| Moore Estate O-8-18091 | KLH Oil & Gas, Inc. only | Chambers (Congl) | Brown | 2 | 3 | 34 | by Jan 1993 – Jul 1993 |
| Chambers, J. M. Est. G-9-117121 | Buena Ventura Operating Company only | Milmar (Strawn) | Tom Green | 1 | 0 | 0 | — |
| Chambers, J. M. Est. G-9-113355 | Buena Ventura Operating Company only | Milmar (Strawn) | Tom Green | 1 | 0 | 0 | — |
| Chambers Co. School Land "G" G-9-82727 | Vanco Oil & Gas Corp. only | Kenlaw (7 Rivers) | Crockett | 1 | 0 | 0 | — |
| Chambers, Frank M. Etal -C- G-14-70451 | Maxus Exploration Company only | Mendota, NW. (Granite Wash, SW.) | Roberts | 1 | 0 | 0 | — |
| Chambers G-8-174163 | Reval Exploration LLC only | John R. Jacobs (Bend Congl.) | Erath | 1 | 0 | 89.7K | May 1999 – Jun 2009 |
| Pickett, G.W. G-8-105628 | Tejas Petroleum Resources, LLC only | Chambers (Congl) | Brown | 1 | 0 | 50.8K | by Jan 1993 – Jun 2018 |