| 32201 | Young H Inc | Edmond, OK 73013 | Oil & Gas Operator | Oct 1993 |
| 32202 | Young Marshall R Oil Co | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |
| 32203 | Young Oil Corporation | | Oil & Gas Operator | Dec 2019 |
| 32204 | Young Petroleum Service, LLC | Wichita, KS 67212 | Oil & Gas Operator | Sep 2023 |
| 32205 | Young Resources, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 1999 |
| 32206 | Young Tommy Oil Inc | Woodward, OK 73802-0893 | Oil & Gas Operator | May 2026 |
| 32207 | Young Z Joe | Cement, OK 73017-0600 | Oil & Gas Operator | Mar 2015 |
| 32208 | Young Zoral J | Cement, OK 73017 | Oil & Gas Operator | Sep 2000 |
| 32209 | Young, Clint Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2026 |
| 32210 | Young, Harvey L. | Erie, KS 66733 | Oil Operator | Feb 2008 |
| 32211 | Young, John H., Inc. | Houston, TX 77027 | Oil & Gas Operator | Aug 2026 |
| 32212 | Young, L. M. | Brownwood, TX 76804 | Oil & Gas Operator | Aug 2003 |
| 32213 | Youngberg, Brian Lenn | Forestville, NY 14062 | Gas Operator | Dec 2025 |
| 32214 | Youngblood Enterprises | | Gas Operator | Dec 1983 |
| 32215 | Youngblood Enterprises, Inc. | | Oil & Gas Operator | Jan 1992 |
| 32216 | Youngblood J Lee | Dallas, TX 75221 | Oil & Gas Operator | Feb 1996 |
| 32217 | Youngblood, C. S. III | Pampa, TX 79065 | Oil & Gas Operator | Dec 2001 |
| 32218 | Younger Bernard | | Oil Operator | Nov 1992 |
| 32219 | Younger Energy C | | Oil & Gas Operator | Dec 1996 |
| 32220 | Younger Energy Company | Wichita, KS 67206 | Oil & Gas Operator | Aug 2026 |
| 32221 | Younger Enterprises Inc | Ada, OK 74821-1882 | Oil Operator | Jan 2003 |
| 32222 | Yount Foundation Inc | | Oil Operator | Dec 2025 |
| 32223 | Yturri, Robert & John | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 32224 | Yturria, Frank D. | Brownsville, TX 78520 | Oil & Gas Operator | Mar 2008 |
| 32225 | Yucca Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2026 |
| 32226 | Yukon Exploration Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Aug 2026 |
| 32227 | Yukon Properties LLC | Villa Park, CA 92861 | Oil & Gas Operator | Sep 2017 |
| 32228 | Yuma E & P Company, Inc. | Houston, TX 77027 | Oil & Gas Operator | Aug 2026 |
| 32229 | Yuma Oil Company | El Dorado, KS 67042 | Oil Operator | Apr 1993 |
| 32230 | Yuma Petroleum Company | Houston, TX 77027 | Oil & Gas Operator | Aug 2002 |
| 32231 | Yunker Oil Co. | | Oil & Gas Operator | Dec 1986 |
| 32232 | Yust, C. F. & R. L. | Batson, TX 77519 | Oil & Gas Operator | Sep 2002 |
| 32233 | Z & L Oil LLC | Longton, KS 67352 | Oil Operator | Apr 2026 |
| 32234 | Z & S Construction Co Inc | Kimball, NE 69145 | Oil & Gas Operator | Feb 2026 |
| 32235 | Z C Ambrose-G L Blaxton, Jr. | | Oil & Gas Operator | Apr 1983 |
| 32236 | Z G Operating LLC | Oklahoma City, OK 73134-5038 | Oil & Gas Operator | Nov 2009 |
| 32237 | Z G Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2005 |
| 32238 | Z&G Operating | Wichita Falls, TX 76302 | Oil Operator | Sep 2011 |
| 32239 | Z/F Little Buddy, L.P. | Tyler, TX 75710 | Oil & Gas Operator | Sep 2000 |
| 32240 | Zachary Oil Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2023 |
| 32241 | Zachris, Inc. | Mansfield, TX 76063 | Oil Operator | Oct 2021 |
| 32242 | Zachry Exploration, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2026 |
| 32243 | Zachry Exploration, LLC | San Antonio, TX 78224 | Oil & Gas Operator | Aug 2026 |
| 32244 | Zachry Exploration, LTD. | San Antonio, TX 78205 | Oil & Gas Operator | Jan 2009 |
| 32245 | Zachry Oil And Gas Properties | Midland, TX 79708 | Oil & Gas Operator | Aug 2026 |
| 32246 | Zachry Operating | Midland, TX 79708 | Oil & Gas Operator | Jan 2011 |
| 32247 | Zackson Resources, Inc. | Houston, TX 77063 | Oil & Gas Operator | Aug 2026 |
| 32248 | Zad, Inc. | | Oil Operator | May 2001 |
| 32249 | Zadeck Energy Group | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 32250 | Zadeck Energy Group, Inc. | | Oil & Gas Operator | Dec 2011 |
| 32251 | Zaf Oil | San Antonio, TX 78230 | Oil & Gas Operator | Aug 2002 |
| 32252 | Zafar Oil & Gas, Inc. | Oklahoma City, OK 73132 | Oil Operator | Aug 2013 |
| 32253 | Zagava, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2026 |
| 32254 | Zajac Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Aug 2026 |
| 32255 | Zam'S Production Company | | Oil Operator | Sep 2004 |
| 32256 | Zama Petro Inc | Clinton, WA 98236-0100 | Oil & Gas Operator | Dec 2025 |
| 32257 | Zap Oil Company | Nowata, OK 74048-2640 | Oil & Gas Operator | Nov 2005 |
| 32258 | Zapata-Fender, L. L. C. | Tyler, TX 75710 | Oil & Gas Operator | Apr 2001 |
| 32259 | Zargon Oil (ND) Inc. | | Oil & Gas Operator | Jun 2026 |
| 32260 | Zarvona Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Aug 2026 |
| 32261 | Zavala Independent Gas, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2007 |
| 32262 | Zavanna Energy Operating, LLC | | Oil & Gas Operator | Jun 2026 |
| 32263 | Zavanna Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2026 |
| 32264 | Zaveri Oil & Gas LTD | Albany, KY 42602 | Oil Operator | Dec 2006 |
| 32265 | Zaza Energy, LLC | Houston, TX 77010 | Oil & Gas Operator | Aug 2026 |
| 32266 | Zca Gas Gathering Co., Inc. | Bartlesville, OK 74003 | Oil & Gas Operator | Apr 2020 |
| 32267 | Zeagler Enterprises, Inc. | | Oil & Gas Operator | Jun 2008 |
| 32268 | Zeal Production Company | Sperry, OK 74073-4714 | Oil & Gas Operator | Jun 2026 |
| 32269 | Zebra Oil And Gas | Lubbock, TX 79423 | Oil & Gas Operator | Aug 2002 |
| 32270 | Zebra Oil Company | El Campo, TX 77437 | Oil & Gas Operator | Aug 2026 |
| 32271 | Zeiders Bros. Oil & Gas Company, L.L.C. | Edmond, OK 73003 | Oil & Gas Operator | May 2026 |
| 32272 | Zeit Exploration Co., Inc. | | Oil & Gas Operator | May 1994 |
| 32273 | Zelaya Oil And Gas, LLC | Premont, TX 78375 | Oil & Gas Operator | Aug 2026 |
| 32274 | Zenergy Inc | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2026 |
| 32275 | Zenergy Operating Co. | | Oil & Gas Operator | Sep 2023 |
| 32276 | Zenergy Operating Company, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2016 |
| 32277 | Zenith Drilling | | Oil & Gas Operator | Aug 1995 |
| 32278 | Zenith Drilling Corporation | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |
| 32279 | Zenith Exploration Co Inc | Washington, PA 15301 | Oil & Gas Operator | Dec 2014 |
| 32280 | Zenith Oil & Gas Inc | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 1999 |
| 32281 | Zenith Oil & Gas, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2026 |
| 32282 | Zenithal LLC | Isonville, KY 41149 | Oil & Gas Operator | Dec 2024 |
| 32283 | Zephyr Lone Star Oper Co.,L.L.C. | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2026 |
| 32284 | Zephyr Operating Co LLC | Oklahoma City, OK 73118-6035 | Oil & Gas Operator | Jun 2026 |
| 32285 | Zephyr SWD LLC | Oklahoma City, OK 73118-6035 | Oil Operator | Jun 2026 |
| 32286 | Zerbst James E | | Oil & Gas Operator | Apr 2007 |
| 32287 | Zercon Oil & Gas, Inc. | | Oil Operator | Oct 2003 |
| 32288 | Zero Mass Mining, LLC | | Oil Operator | Jan 2025 |
| 32289 | Zeta Energy LLC | Ashland, OR 97520 | Oil Operator | Apr 2026 |
| 32290 | Zetetic Partners, LTD. | Georgetown, TX 78626 | Oil Operator | Dec 2018 |
| 32291 | Zgen, Inc. | | Oil & Gas Operator | Jul 1990 |
| 32292 | Zia Energy Inc | The Woodlands, TX 77380 | Oil & Gas Operator | May 2005 |
| 32293 | Zia Minerals LTD Co | Andrews, TX 79714 | Oil & Gas Operator | Sep 1996 |
| 32294 | Zickefoose, R. L. And W.F. | Burgettstown, PA 15021 | Oil & Gas Operator | Dec 2021 |
| 32295 | Ziegler-Peru, Inc. | Houston, TX 77027 | Oil & Gas Operator | Dec 2019 |
| 32296 | Zilkha Energy Company | Houston, TX 77046 | Oil & Gas Operator | Oct 2002 |
| 32297 | Zilkha Energy Inc | Houston, TX 77002-5223 | Oil & Gas Operator | Dec 2008 |
| 32298 | Zim Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Jan 1998 |
| 32299 | Zimco (Robt A Zimmerman) | Wolf Point, MT 59201 | Oil Operator | Apr 2009 |
| 32300 | Zimmerman Oil & Gas Exploration, Inc. | Houston, TX 77208 | Oil & Gas Operator | Jun 2026 |