| Urbanczyk Unit O-2-9831 | EOG Resources, Inc. only | Eagleville (Eagle Ford-2) | Karnes | 7 | 677K | 1.17M | Oct 2011 – Apr 2026 |
| Urbanczyk O-1-16171 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 1 | 135K | 34K | May 2012 – Apr 2026 |
| Anton Urbanczyk O-1-16461 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 1 | 133K | 39.6K | May 2012 – Apr 2026 |
| Urbanczyk O-14-2720 | Henry Paul Petroleum, LLC only | Panhandle Gray County Field | Gray | 11 | 123K | 68.7K | Jan 1993 – Aug 2025 |
| Pena-Urbanczyk B O-1-20889 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 1 | 107K | 53.4K | Nov 2022 – Apr 2026 |
| Ambrose Urbanczyk O-1-17287 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 1 | 97.6K | 24K | Nov 2013 – Apr 2026 |
| Tidal Urbanczyk O-1-15465 | Warwick-Artemis, LLC only | Eagleville (Eagle Ford-1) | Wilson | 1 | 66.7K | 3.21K | Jul 2011 – Apr 2026 |
| Urbanczyk O-2-7055 | Magnolia Oil & Gas Operating LLC only | Person (Edwards) | Karnes | 1 | 53.8K | 30.4K | Jan 1993 – Apr 2018 |
| Urbanczyk -A- O-2-7299 | Dewbre Petroleum Corporation only | Person (Edwards) | Karnes | 1 | 15.9K | 272K | Jan 1993 – Mar 2008 |
| Urbanczyk, Fred O-14-7978 | Suits & Jeans, LLC only | Panhandle Carson County Field | Carson | 1 | 6.44K | 17.6K | Mar 2009 – Dec 2025 |
| Urbanczyk GU 2 G-1-87779 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 4.6K | 4.99M | Jan 1993 – Apr 2026 |
| Urbanczyk GU 1 G-1-99401 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 2.52K | 2.15M | Jan 1993 – Nov 2017 |
| Urbanczyk O-14-6178 | Pantera Energy Company only | Panhandle Carson County Field | Carson | 1 | 1.98K | 168K | Jan 1993 – May 2021 |
| Urbanczyk, John O-14-2159 | H & K Plugging and Salvage only | Panhandle Carson County Field | Carson | 8 | 1.88K | 7.96K | Jan 1993 – Jun 1998 |
| Urbanczyk GU 1 G-1-85715 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 1.49K | 1.95M | Jan 1993 – Apr 2026 |
| Urbanczyk GU 2 G-1-149307 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 284 | 1.37M | Apr 1994 – Apr 2026 |
| Urbanczyk GU 1 G-1-78972 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 199 | 1.23M | Jan 1993 – Apr 2026 |
| Urbanczyk, E G-2-250428 | Enerquest Operating L.L.C. only | Person (Edwards) | Karnes | 1 | 93 | 32.7K | Aug 2009 – Sep 2011 |
| Urbanczyk -B- O-14-4263 | M E G G , Inc. only | Panhandle Carson County Field | Carson | 3 | 54 | 380 | Jan 1993 – Feb 1993 |
| Urbanczyk GU 3 G-1-88797 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 11 | 1.39M | Jan 1993 – Nov 1998 |
| Urbanczyk -H- O-14-4292 | M E G G , Inc. only | Panhandle Carson County Field | Carson | 2 | 5 | 565 | Jan 1993 – Feb 1993 |
| Urbanczyk, B. G-14-24240 | High River Res Operating, LLC only | Panhandle, West | Carson | 1 | 0 | 608K | Jan 1993 – Apr 2026 |
| Urbanczyk, B. G-14-24241 | High River Res Operating, LLC only | Panhandle, West | Carson | 1 | 0 | 957K | Jan 1993 – Apr 2026 |
| Urbanczyk, J. H. G-14-24242 | High River Res Operating, LLC only | Panhandle, West | Carson | 1 | 0 | 354K | Jan 1993 – Sep 2019 |
| Urbanczyk, J. H. G-14-24243 | High River Res Operating, LLC only | Panhandle, West | Carson | 1 | 0 | 276K | Jan 1993 – Mar 2016 |
| Urbanczyk GU 2 G-1-225 | Newfield Exploration Company only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk -B- G-14-24393 | Pantera Energy Company only | Panhandle, West | Carson | 1 | 0 | 915K | Jan 1993 – Apr 2026 |
| Urbanczyk -B- G-14-24394 | Pantera Energy Company only | Panhandle, West | Carson | 1 | 0 | 1.95M | Jan 1993 – Apr 2026 |
| Urbanczyk, L. T. G-14-24395 | Pantera Energy Company only | Panhandle, West | Carson | 1 | 0 | 132K | Jan 1993 – Apr 2026 |
| Urbanczyk G-14-25181 | Bce-Mach III LLC only | Panhandle, West | Gray | 1 | 0 | 917K | Jan 1993 – Apr 2026 |
| Urbanczyk G-14-170416 | Pantera Energy Company only | Panhandle, West | Carson | 1 | 0 | 472K | Jul 1998 – Apr 2026 |
| Urbanczyk, E. M. O-2-3911 | Janssen, Wayne Allen only | Panna Maria (Edwards) | Karnes | 1 | 0 | 0 | — |
| Urbanczyk, L. T. G-14-24392 | Pantera Energy Company only | Panhandle, West | Carson | 1 | 0 | 877K | Jan 1993 – Apr 2026 |
| Urbanczyk, L. T. Unit 3 G-1-226 | EP Operating Limited Partnership only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk GU 2 G-1-255 | Newfield Exploration Company only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk, L. T. Unit 3 G-1-256 | EP Operating Limited Partnership only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk, L. T. Unit 2 G-1-48936 | Enserch Exploration, Inc only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk GU 3 G-1-54465 | Zone Ridge Operating, LLC only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 1.14M | Jan 1993 – May 2009 |
| Urbanczyk GU 3 G-1-56013 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk GU 2 G-1-87778 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 4.11M | Jan 1993 – Nov 1999 |
| Urbanczyk GU 3 G-1-88798 | Zone Ridge Operating, LLC only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 1.89M | Jan 1993 – Feb 2005 |
| Urbanczyk GU 1 G-1-99570 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 1.56M | Jan 1993 – Feb 2008 |
| Urbanczyk, L. T. Unit 2 G-1-147954 | EP Operating Limited Partnership only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk, L. T. G-1-147955 | EP Operating Limited Partnership only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 0 | — |
| Urbanczyk GU 3 G-1-148211 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 1.52M | Dec 1993 – May 1999 |
| Urbanczyk GU 2 G-1-149296 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 6.51K | Apr 1994 – Sep 1995 |
| Urbanczyk GU 2 G-1-150575 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 216 | Jan 1994 – Jun 2019 |
| Urbanczyk, L.T. Gas Unit 1 G-1-152135 | Enserch Exploration, Inc only | Fashing (Edwards Lime -B-) | Atascosa | 1 | 0 | 316K | Nov 1994 – Jan 1996 |
| Urbanczyk GU 1 G-1-160176 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 227K | Feb 1996 – Jun 2017 |
| Urbanczyk GU 3 G-1-173444 | Capital Star Oil & Gas, Inc. only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 0 | 97.3K | Jun 1999 – Apr 2026 |