| Iowa O-10-4805 | Apv McCamey LLC only | Pecos Valley (Low Gravity) | Pecos | 13 | 57K | 192 | by Jan 1993 – Apr 2021 |
| I R T /Iowa Realty Trust/ O-10-4785 | Vidonia Oil LLC only | Pecos Valley (Low Gravity) | Pecos | 3 | 37.2K | 146 | by Jan 1993 – Apr 2021 |
| Iowa Realty Trust -Mc- O-10-4806 | Hard Rock O&G only | Pecos Valley (Low Gravity) | Pecos | 13 | 36.1K | 20 | Mar 1995 – Jun 2023 |
| Iowa Realty Trust 125 O-10-21171 | Last Mile Production, LLC only | Brooklaw (Clear Fork, Lower) | Pecos | 3 | 32K | 269 | by Jan 1993 – Dec 2019 |
| Iowa Realty Trust 125 "A" O-10-22689 | Last Mile Production, LLC only | Brooklaw (Clear Fork, Lower) | Pecos | 6 | 25.2K | 10.6K | by Jan 1993 – Feb 2017 |
| Iowa Realty Trust O-10-27136 | Olsen Energy Inc. only | Pecos Valley, S. (Devonian) | Pecos | 1 | 18.7K | 86.4K | by Jan 1993 – Aug 2016 |
| Iowa Realty Trust "B" O-10-33242 | Incline Energy only | Pecos Valley, S. (Devonian) | Pecos | 1 | 14.3K | 258K | by Jan 1993 – Oct 2016 |
| Iowa Realty Trust O-10-36570 | Moonlite Oil & Gas Company only | Pecos Valley (Wichita-Albany) | Pecos | 1 | 13.4K | 148K | Jan 2001 – Aug 2026 |
| Iowa Realty Trust O-10-4716 | Molder, Tom only | Pecos Valley (High Gravity) | Pecos | 3 | 9.02K | 21 | by Jan 1993 – Apr 2013 |
| Iowa Realty Trust 123 "B" O-10-23886 | Last Mile Production, LLC only | Brooklaw (Clear Fork, Lower) | Pecos | 2 | 8.94K | 3.81K | by Jan 1993 – Dec 2010 |
| Iowa Realty Trust -A- O-10-4723 | Bebco Parts Industries, Inc. only | Pecos Valley (High Gravity) | Pecos | 12 | 8.04K | 23 | by Jan 1993 – Aug 2002 |
| Iowa Realty Trust O-10-18584 | Limark Corporation only | Pecos Valley (Fusselman #2) | Pecos | 1 | 7.02K | 22 | by Jan 1993 – Feb 1998 |
| Iowa Realty Trust -A- O-10-20792 | Molder, Tom only | Pecos Valley, SE. (Yates 1620) | Pecos | 2 | 6.89K | 22 | by Jan 1993 – Apr 2013 |
| Iowa Realty Trust "A" O-10-34054 | MBR Resources, Inc. only | Lehn-Apco, S. (Wichita-Albany) | Pecos | 1 | 6.34K | 260K | Dec 1993 – Jun 2001 |
| Iowa Realty Trust O-10-9248 | Bebco Parts Industries, Inc. only | Pecos Valley (High Gravity) | Pecos | 7 | 4.64K | 23 | by Jan 1993 – Jul 2002 |
| Iowa Realty Trust 125 "A" G-10-57818 | Last Mile Production, LLC only | Owego (Tansill) | Pecos | 1 | 4.51K | 36.4K | Sep 1993 – Jul 2024 |
| Iowa Trust Tr. -A- O-10-4802 | Hydrogeo Energy, LLC only | Pecos Valley (Low Gravity) | Pecos | 1 | 4.27K | 126 | by Jan 1993 – Dec 2020 |
| Iowa Realty Trust O-10-20423 | Molder, Tom only | Pecos Valley, SE. (Yates 1620) | Pecos | 2 | 4.22K | 22 | by Jan 1993 – Apr 2013 |
| Iowa Realty Trust 123 "A" O-10-23039 | Last Mile Production, LLC only | Brooklaw (Clear Fork, Lower) | Pecos | 3 | 3.48K | 657 | by Jan 1993 – Feb 2009 |
| Iowa Realty Trust -A- O-10-25895 | Pedco Resources Company only | Lehn-Apco, South (Ellen) | Pecos | 1 | 3K | 493 | by Jan 1993 – Nov 1993 |
| Iowa Realty Trust "A" O-10-24049 | N & O Oil Co. only | Pecos Valley (High Gravity) | Pecos | 8 | 1.82K | 8.04K | by Jan 1993 – Aug 1998 |
| Iowa Realty Trust -123- O-10-21801 | Last Mile Production, LLC only | Tomlaw (Clear Fork 3200) | Pecos | 1 | 856 | 21 | by Jan 1993 – Dec 1994 |
| Iowa Realty Trust -B- O-10-4722 | Bebco Parts Industries, Inc. only | Pecos Valley (High Gravity) | Pecos | 16 | 612 | 23 | by Jan 1993 – Jan 2002 |
| Iowa Realty Trust Co. O-10-4790 | Hard Rock O&G only | Pecos Valley (Low Gravity) | Pecos | 3 | 411 | 30 | Feb 1993 – Mar 2021 |
| Iowa Realty Trust "A" G-10-183303 | Unit Petroleum Company only | Lehn-Apco, S. (Wichita-Albany) | Pecos | 1 | 74 | 84.1K | May 2001 – Feb 2008 |
| Iowa Realty Trust G-10-20581 | Grace Petroleum Operating, LLC only | Pecos Valley (McKee) | Pecos | 1 | 35 | 811K | by Jan 1993 – Aug 2022 |
| Iowa Realty Trust "S" O-10-23435 | Nizen, Stanley only | Beverly (Queen) | Pecos | 1 | 33 | 18.5K | by Jan 1993 – Aug 1996 |
| Iowa Realty Trust G-10-44766 | Olsen Energy Inc. only | Pecos Valley (Wolfcamp) | Pecos | 1 | 14 | 1.04M | by Jan 1993 – Aug 2026 |
| Iowa Realty Trust O-10-39078 | Trilogy Operating, Inc. only | Lehn-Apco, S. (Wichita-Albany) | Pecos | 1 | 9 | 4 | Jul 2008 – Jan 2009 |
| Iowa Realty Trust -125- G-10-52857 | Last Mile Production, LLC only | Brooklaw (Tubb) | Pecos | 1 | 0 | 1.12K | by Jan 1993 – May 1994 |
| Iowa Realty Trust G-10-282169 | Olsen Energy Inc. only | Pecos Valley (Wichita-Albany) | Pecos | 1 | 0 | 44.9K | Sep 2016 – Apr 2020 |
| Ritter-Walker Iowa Realty Trust O-10-4796 | Boland Oil & Gas only | Pecos Valley (Low Gravity) | Pecos | 5 | 0 | 0 | — |
| Iowa Realty Trust 123 O-10-22193 | Riata Energy, Inc. only | Brooklaw (Clear Fork, Lower) | Pecos | 1 | 0 | 0 | — |
| Iowa Realty Trust O-10-37032 | Jeter Drilling Production only | Pecos Valley (Fusselman) | Pecos | 1 | 0 | 0 | — |
| Iowa Realty Trust "S" G-10-160469 | Hard Rock O&G only | Beverly (Queen) | Pecos | 1 | 0 | 235K | Aug 1996 – Jun 2021 |
| Iowa Realty Trust 'A' G-10-285715 | Last Mile Production, LLC only | Brooklaw (Clear Fork, Lower) | Pecos | 1 | 0 | 64.7K | Jul 2018 – Jul 2024 |
| Iowa Realty Trust -A- O-10-27624 | Oil-X Corp., The only | Pecos Valley (Fusselman) | Pecos | 1 | 0 | 0 | — |
| Iowa Realty Trust-123 O-10-20810 | Last Mile Production, LLC only | Tomlaw (Clear Fork Lower) | Pecos | 1 | 0 | 0 | — |
| Iowa Realty Trust G-10-33075 | Bugington Energy, LLC only | Pecos Valley (Yates) | Pecos | 1 | 0 | 3.32K | by Jan 1993 – Mar 1999 |