| Jennings Ranch G-4-119598 | Chesapeake Operating, Inc. only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 145K | Jan 1993 – Apr 2007 |
| Jennings Ranch G-4-120801 | Chesapeake Operating, Inc. only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 0 | Jan 1993 – Apr 2007 |
| Jennings Ranch G-4-125563 | Conocophillips Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 0 | Jan 1993 – Dec 2011 |
| Jennings Ranch C G-4-165242 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.21M | Oct 1997 – Jul 2026 |
| Jennings Ranch C G-4-169075 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 5.73M | Apr 1998 – Jul 2026 |
| Jennings Ranch C G-4-169480 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 3.19M | Jul 1998 – Jul 2026 |
| Jennings Ranch C G-4-170761 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.54M | Aug 1998 – Jul 2026 |
| Jennings Ranch C G-4-172603 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 473K | Mar 1999 – Jul 2026 |
| Jennings Ranch C G-4-172864 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 3.18M | Apr 1999 – Jul 2026 |
| Jennings Ranch C G-4-174811 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.18M | Oct 1999 – Jul 2026 |
| Jennings Ranch C G-4-174940 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.76M | Oct 1999 – Jul 2026 |
| Jennings Ranch D G-4-175198 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 793K | Dec 1999 – Jul 2026 |
| Jennings Ranch C G-4-175606 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.87M | Dec 1999 – Jul 2026 |
| Jennings Ranch D G-4-176846 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 416K | Dec 1999 – Jul 2026 |
| Jennings Ranch C G-4-176914 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 4.63M | Jan 2000 – Jul 2026 |
| Jennings Ranch C G-4-176926 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.25M | Mar 2000 – Jul 2026 |
| Jennings Ranch C G-4-177247 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.43M | Apr 2000 – Jul 2026 |
| Jennings Ranch D G-4-177719 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.11M | Apr 2000 – Jul 2026 |
| Jennings Ranch D G-4-178583 | Conocophillips Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 74.8K | Aug 2000 – Apr 2012 |
| Jennings Ranch C G-4-178594 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.47M | Jun 2000 – Jul 2026 |
| Jennings Ranch C G-4-180142 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.63M | Aug 2000 – Jul 2026 |
| Jennings Ranch C G-4-180336 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 4.98M | Dec 2000 – Jul 2026 |
| Jennings Ranch C G-4-180460 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.58M | Nov 2000 – Jul 2026 |
| Jennings Ranch C G-4-180788 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.19M | Dec 2000 – Jul 2026 |
| Jennings Ranch C G-4-181217 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.82M | Jan 2001 – Jul 2026 |
| Jennings Ranch D G-4-181688 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 22.6K | Feb 2001 – Jul 2026 |
| Jennings Ranch C G-4-182714 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.44M | Apr 2001 – Jul 2026 |
| Jennings Ranch C G-4-182843 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 787K | Apr 2001 – Jul 2026 |
| Jennings Ranch D G-4-185549 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.87M | Oct 2001 – Jul 2026 |
| Jennings Ranch C G-4-186220 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.35M | Oct 2001 – Jul 2026 |
| Jennings Ranch C G-4-187032 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.75M | Nov 2001 – Jul 2026 |
| Jennings Ranch C G-4-187084 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 443K | Nov 2001 – Jul 2026 |
| Jennings Ranch C G-4-187252 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 577K | Jan 2002 – Jul 2026 |
| Jennings Ranch A G-4-187300 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 314K | Dec 2001 – Jul 2026 |
| Jennings Ranch C G-4-187493 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 472K | Nov 2001 – Jul 2026 |
| Jennings Ranch C G-4-187510 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 4.02M | Jan 2002 – Jul 2026 |
| Jennings G-4-187545 | Devon Energy Production Co, L.P. only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 247K | Jan 2002 – Oct 2005 |
| Jennings Ranch A G-4-187647 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.75M | Nov 2001 – Jul 2026 |
| Jennings Ranch A G-4-188120 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 3.89M | Feb 2002 – Jul 2026 |
| Jennings G-4-188154 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.73M | Jan 2002 – Jul 2026 |
| Jennings Ranch C G-4-188239 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.25M | Feb 2002 – Jul 2026 |
| Jennings Ranch D G-4-188501 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.41M | Mar 2002 – Jul 2026 |
| Jennings Ranch C G-4-189070 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.54M | Apr 2002 – Jul 2026 |
| Jennings Ranch B G-4-189148 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.28M | Apr 2002 – Jul 2026 |
| Jennings Ranch A G-4-189857 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.09M | Jun 2002 – Jul 2026 |
| Jennings G-4-189896 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 338K | Jul 2002 – Jul 2026 |
| Jennings Ranch A G-4-189994 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 2.09M | May 2002 – Jul 2026 |
| Jennings Ranch A G-4-190009 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.41M | Dec 2001 – Jul 2026 |
| Jennings Ranch C G-4-190130 | Hilcorp Energy Company only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 1.15M | May 2002 – Jul 2026 |
| Jennings Ranch G-4-118600 | Chesapeake Operating, Inc. only | Jennings Ranch (Lobo Cons.) | Zapata | 1 | 0 | 277K | Jan 1993 – Jan 2007 |