| Martinez, Lauro G-4-72247 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 1.8M | Jan 1993 – Jul 2026 |
| Martinez, Adrian Gas Unit G-4-74921 | J. C. Martin (Lobo) | Zapata | 1 | 0 | 3.18M | Jan 1993 – Jul 2026 |
| Martinez, Eudoxio Gas Unit G-4-73452 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 4.13M | Jan 1993 – Jul 2026 |
| Martinez, A. Gas Unit G-4-75822 | J. C. Martin (Lobo) | Zapata | 1 | 0 | 4.14M | Jan 1993 – Jul 2026 |
| Martinez, Acela G-4-77343 | J. C. Martin (Lobo) | Zapata | 1 | 0 | 800K | Jan 1993 – Jul 2026 |
| Martinez, Acela G-4-96183 | J. C. Martin (Lobo) | Zapata | 1 | 0 | 2.04M | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-96209 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 2.55M | Jan 1993 – Jul 2026 |
| Martinez, Eudoxio G-4-75657 | J. C. Martin (Lobo) | Zapata | 1 | 0 | 2.3M | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-98968 | Las Ovejas (Lobo 3 FB-B) | Zapata | 1 | 0 | 1.18M | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-100680 | Las Ovejas (Lobo 3 FB-E) | Zapata | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-102612 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 8.07M | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-102724 | Las Ovejas (Lobo 1) | Zapata | 1 | 0 | 189K | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas Co. G-4-104012 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 1.66M | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-104718 | Las Ovejas (Wilcox 9550) | Zapata | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-105281 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 363K | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-106054 | Las Ovejas (Lobo 3 FB-C) | Zapata | 1 | 0 | 908K | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-98430 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 1.65M | Jan 1993 – Jul 2026 |
| Flores Gas Unit G-4-109912 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 2.77M | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-112097 | Las Ovejas (Upper Wilcox) | Zapata | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-112465 | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 0 | 809K | Jan 1993 – Jul 2026 |
| Mestena G-4-112531 | Coyote, East (Queen City) | Jim Hogg | 1 | 0 | 215K | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-112939 | Las Ovejas (Lobo 3 FB-B) | Zapata | 1 | 0 | 50K | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-113685 | Las Ovejas (Lobo 3 FB-C) | Zapata | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Mestena Hot Wells G-4-115035 | Coyote, West (Queen City) | Jim Hogg | 1 | 0 | 400K | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-115845 | Las Ovejas (Lobo 1) | Zapata | 1 | 0 | 26.6K | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-116607 | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 0 | 1.11M | Jan 1993 – Jul 2026 |
| San Fernando Minerals G-4-116782 | San Fernando (Lobo 9600) | Zapata | 1 | 0 | 237K | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas "E" G-4-117048 | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 0 | 1.28M | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-117506 | Las Ovejas (Lobo 3 FB-D) | Zapata | 1 | 0 | 1.16M | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas Company G-4-119438 | Jaron (Queen City) | Jim Hogg | 1 | 0 | 693K | Jan 1993 – Jul 2026 |
| Pena Gas Unit #1 G-4-121046 | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 0 | 4.1M | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-121281 | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 0 | 2.7M | Jan 1993 – Jul 2026 |
| Martinez, Lauro G-4-121431 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 3.39M | Jan 1993 – Jul 2026 |
| Martinez, Eudoxio G-4-122571 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 175K | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas G-4-122824 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 2.57M | Jan 1993 – Jul 2026 |
| Mestena Oil & Gas Company G-4-122906 | Jaron (Queen City) | Jim Hogg | 1 | 0 | 628K | Jan 1993 – Jul 2026 |
| Martinez, Acela G-4-123140 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 210K | Jan 1993 – Jul 2026 |
| Pena, Jesus Gas Unit G-4-123285 | Mestena Grande (Queen City, E.) | Jim Hogg | 1 | 0 | 157K | Jan 1993 – Jul 2026 |
| Mestena, Inc. G-4-124606 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 560K | Jan 1993 – Jul 2026 |
| Martinez, Lauro G-4-124675 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Frijole G-4-124812 | Mestena Grande (Queen City Cons) | Jim Hogg | 1 | 0 | 3.06M | Jan 1993 – Jul 2026 |
| Sanchez, Carmen D. Heirs G-4-125197 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 1.71M | Jan 1993 – Jul 2026 |
| San Fernando Minerals G-4-125447 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 331K | Jan 1993 – Jul 2026 |
| Martinez, Eudoxio Gas Unit G-4-125756 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 1.72M | Jan 1993 – Jul 2026 |
| Martinez, Eudoxio G-4-126685 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 550K | Jan 1993 – Jul 2026 |
| Sanchez, Carmen D. Heirs G-4-128406 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 855K | Jan 1993 – Jul 2026 |
| San Fernando Minerals G-4-128986 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 253K | Jan 1993 – Jul 2026 |
| Martinez, Lauro-Acela Gas Unit G-4-131195 | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 0 | 319K | Jan 1993 – Jul 2026 |
| Sanchez-San Fernando Min. GU G-4-144473 | Big Mac (8260) | Zapata | 1 | 0 | 679K | Jan 1993 – Jul 2026 |
| Slator Ranch G-4-144608 | Las Ovejas (Lobo 1) | Zapata | 1 | 0 | 51.5K | Feb 1993 – Jul 2026 |