| Slick, T.B. Estate B-266 G-4-155693 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg 6190) | Starr | 1 | 234K | 6.37M | Jul 1995 – Nov 2003 |
| Montalvo, I.V. -C- O-4-11649 | Kerr-McGee Oil & Gas Onshore LLC | Sun, North (5810) | Starr | 1 | 110K | 103K | by Jan 1993 – Jun 2003 |
| Semmes Trust , et al 906 O-4-13168 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg 87\89) | Starr | 1 | 76.2K | 67.5K | May 2003 – Feb 2004 |
| Slick, T..b. Estate A O-4-12666 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg 90) | Starr | 1 | 67.6K | 206K | Apr 1997 – Aug 2002 |
| Slick, T. B. Estate A-527 G-4-169306 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (87B Vicksburg) | Starr | 1 | 56.5K | 2.34M | Jun 1998 – Mar 2001 |
| Slick, T. B. A-229 O-4-12732 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg 90) | Starr | 1 | 55K | 275K | Nov 1997 – Jul 2002 |
| Garcia, I.Y. G-4-147109 | Kerr-McGee Oil & Gas Onshore LLC | Flores (Vicksburg, Lower) | Starr | 1 | 47.8K | 3.06M | Sep 1993 – Sep 2000 |
| Alvarez-Hinojosa Gas Unit G-4-163149 | Kerr-McGee Oil & Gas Onshore LLC | Frost, North (Vicksburg 7100) | Starr | 1 | 44.6K | 717K | Apr 1997 – Jun 2000 |
| Miller B-C Sand Unit O-4-6006 | Kerr-McGee Oil & Gas Onshore LLC | Garcia (Miller -B- VI) | Starr | 1 | 41K | 30.1K | by Jan 1993 – Nov 2002 |
| Yturria L & L Co. "C" G-4-150151 | Kerr-McGee Oil & Gas Onshore LLC | Flores (Vicksburg, Lower) | Starr | 1 | 34K | 2.88M | Feb 1994 – Sep 2000 |
| Herman, A.G. Gas Unit G-4-160515 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Vicksburg 7300) | Starr | 1 | 32.9K | 1.25M | May 1996 – Nov 1999 |
| De Garcia, B. G. G-4-162392 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Ashby Sand) | Starr | 1 | 29.4K | 535K | Feb 1997 – Oct 1998 |
| Hermann, A. G. Gas Unit G-4-162219 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Vicksburg 7300) | Starr | 1 | 25.3K | 549K | Feb 1997 – Jun 1999 |
| Montalvo, N. R. G-4-195853 | Kerr-McGee Oil & Gas Onshore LLC | Sun, North (7020 Sand) | Starr | 1 | 23.9K | 250K | Jul 2003 – Feb 2005 |
| Garcia-Yturria -a- Gas Unit G-4-158339 | Kerr-McGee Oil & Gas Onshore LLC | Flores (Vicksburg, Lower) | Starr | 1 | 19.1K | 2.5M | Apr 1996 – Nov 2003 |
| Garcia L & L Co. "C" G-4-147610 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Rincon 2A, Seg. II) | Starr | 1 | 18.6K | 2.42M | Dec 1993 – Feb 2000 |
| Garcia, I.Y. G-4-144534 | Kerr-McGee Oil & Gas Onshore LLC | Flores (Vicksburg, Lower) | Starr | 1 | 18.4K | 1.24M | by Jan 1993 – Jan 2001 |
| Speer, Geo. H. State -D- G-4-176266 | Kerr-McGee Oil & Gas Onshore LLC | Lyda (Vicksburg Lower) | Starr | 1 | 17.5K | 651K | Feb 2000 – May 2004 |
| De Garza, C. L. G-4-183145 | Kerr-McGee Oil & Gas Onshore LLC | Sun, North (Rincon 6650) | Starr | 1 | 16K | 1.75M | May 2001 – May 2002 |
| Garcia L&L Co. -C- G-4-180034 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Ashby Sand) | Starr | 1 | 13.8K | 202K | Oct 2000 – Jun 2001 |
| Frio E Unit -B- O-4-6304 | Kerr-McGee Oil & Gas Onshore LLC | Rincon | Starr | 13 | 13.7K | 20.9K | by Jan 1993 – Apr 2002 |
| Slick, T. B. Estate A G-4-148585 | Kerr-McGee Oil & Gas Onshore LLC | Frost, W. (Vicksburg Massive) | Starr | 1 | 13K | 853K | Mar 1994 – Sep 2003 |
| Herman, A. G., Jr. Gas Unit G-4-125445 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Ashby Sand) | Starr | 1 | 12.7K | 715K | by Jan 1993 – Jan 1997 |
| Slick, T. B. Estate A-527 G-4-184945 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (87A Vicksburg) | Starr | 1 | 12.1K | 992K | Apr 2001 – May 2002 |
| Silva-Coates Energy Trust G-4-154356 | Kerr-McGee Oil & Gas Onshore LLC | Kelsey (Vxkbg. Consol.) | Starr | 1 | 11.7K | 413K | Mar 1995 – Apr 2004 |
| A. G. Herman Gas Unit G-4-165067 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Vicksburg 7300) | Starr | 1 | 10.8K | 563K | Sep 1997 – Nov 1999 |
| Montalvo, N. R. G-4-185911 | Kerr-McGee Oil & Gas Onshore LLC | Sun, North (Vicksburg 5960) | Starr | 1 | 8.76K | 1.12M | Nov 2001 – Apr 2004 |
| Orive, A G-4-128167 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Vicksburg 7700) | Starr | 1 | 8.61K | 920K | by Jan 1993 – Mar 2004 |
| Slick, T. B. Est. -a- 229 O-4-13218 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg 90) | Starr | 1 | 8.35K | 22K | Feb 2004 – Mar 2004 |
| Reilly Heirs G-4-167949 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Vicksburg 7300) | Starr | 1 | 8.12K | 187K | Mar 1998 – Mar 1999 |
| Garcia L & L "C" O-4-12953 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Flores, Upper) | Starr | 2 | 7.7K | 4.5K | Mar 2000 – May 2000 |
| Speer, Geo. H.-State -B- O-4-3084 | Kerr-McGee Oil & Gas Onshore LLC | Sun | Starr | 1 | 7.3K | 92.3K | by Jan 1993 – Jan 1996 |
| Slick, T. B. Estate A-527 G-4-179717 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg Cons.) | Starr | 1 | 7.24K | 56.8K | Oct 2000 – Apr 2004 |
| Orive, A. G-4-164864 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Vicksburg 7300) | Starr | 1 | 6.32K | 166K | Aug 1997 – Mar 1998 |
| Frost National Bank -A- G-4-181428 | Kerr-McGee Oil & Gas Onshore LLC | Garcia (Vicksburg-Flores 5500) | Starr | 1 | 6.06K | 280K | Jan 2001 – Oct 2001 |
| Slick, T. B. Estate A G-4-161304 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg 95) | Starr | 1 | 5.24K | 168K | Jul 1996 – Feb 1998 |
| De Garcia, B. G. G-4-166293 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Rincon 2-A) | Starr | 1 | 5.23K | 112K | Jan 1998 – Aug 2000 |
| Hermann, A. G. Gas Unit O-4-12916 | Kerr-McGee Oil & Gas Onshore LLC | Frost, North (Vicksburg 7100) | Starr | 1 | 5.13K | 92K | Feb 2000 – Sep 2000 |
| Slick, T.B. Estate B1 G-4-138361 | Kerr-McGee Oil & Gas Onshore LLC | Frost, North (Ashby FB III) | Starr | 1 | 4.69K | 270K | by Jan 1993 – Jul 1999 |
| Garcia L & L Co. -C- G-4-167229 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Flores, Upper) | Starr | 1 | 4.66K | 146K | Mar 1998 – Nov 1998 |
| Hermann, A.G. Gas Unit G-4-162868 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Ashby Sand) | Starr | 1 | 4.11K | 121K | May 1997 – Sep 1998 |
| Hall, C. M. -A- G-4-185685 | Kerr-McGee Oil & Gas Onshore LLC | Lyda (Vicksburg Lower) | Starr | 1 | 4.1K | 504K | Oct 2001 – Jun 2004 |
| Speer, Geo. H. G-4-145724 | Kerr-McGee Oil & Gas Onshore LLC | Lyda (Vicksburg Lower) | Starr | 1 | 4.05K | 766K | Jun 1993 – Apr 1998 |
| De Garcia, B. G. G-4-141803 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Rincon 6100) | Starr | 1 | 3.98K | 848K | by Jan 1993 – Sep 1997 |
| Conoco-Rincon Unit O-4-12287 | Kerr-McGee Oil & Gas Onshore LLC | Rincon (Vicksburg 6190) | Starr | 1 | 3.81K | 5.42K | Nov 1993 – Nov 1994 |
| Alvarez-Hinojosa Gas Unit G-4-185347 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Vicksburg 9200) | Starr | 1 | 3.71K | 339K | Sep 2001 – Mar 2004 |
| Slick, T. B. -B- Est. O-4-2341 | Kerr-McGee Oil & Gas Onshore LLC | Rincon | Starr | 12 | 3.48K | 11K | by Jan 1993 – Feb 1995 |
| Laurel, C. G-4-182314 | Kerr-McGee Oil & Gas Onshore LLC | Sun, North (7020 Sand) | Starr | 1 | 3.46K | 772K | Apr 2001 – Aug 2002 |
| De Lopez, C. V. -B- G-4-142387 | Kerr-McGee Oil & Gas Onshore LLC | Kelsey (Vxkbg. Consol.) | Starr | 1 | 3.35K | 533K | by Jan 1993 – Jul 2000 |
| Garcia L & L "C" G-4-178323 | Kerr-McGee Oil & Gas Onshore LLC | Frost (Rincon 4990) | Starr | 1 | 3.14K | 209K | Mar 2000 – Mar 2002 |