OPERATORS · RRC 433073

JM Calk Oper, LLC

WindowAll time 90 days 1 year 3 years 10 years

CountyBexar 31 Frio 2

33 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Feb 19, 2026	913507	Drill	Bexar	Erd Unit #15	1,500	—	02938405	—
Feb 19, 2026	913506	Drill	Bexar	Erd Unit #14	1,500	—	02938404	—
Feb 18, 2026	913484	Drill	Bexar	Erd Unit #13	1,500	—	02938403	—
Feb 13, 2026	913198	Drill	Bexar	Erd Unit #12	1,500	—	02938402	—
Dec 15, 2025	912107	Drill	Bexar	Erd Unit #8	1,500	—	02938401	—
Dec 15, 2025	912106	Drill	Bexar	Erd Unit #7	1,500	—	02938400	—
Dec 15, 2025	912105	Drill	Bexar	Erd Unit #6	1,500	—	02938335	—
Oct 27, 2014	798638	Drill	Bexar	Garza #5	1,500	Final completion	02938332	Acquired from Premier Minerals, Inc.
Oct 27, 2014	798637	Drill	Bexar	Garza #4	1,500	Final completion	02938331	Acquired from Premier Minerals, Inc.
Oct 27, 2014	798636	Drill	Bexar	Garza #3	1,500	Final completion	02938330	Acquired from Premier Minerals, Inc.
Oct 27, 2014	798635	Drill	Bexar	Garza #2	1,500	Final completion	02938329	Acquired from Premier Minerals, Inc.
Oct 27, 2014	798634	Drill	Bexar	Garza #1	1,500	Final completion	02938328	Acquired from Premier Minerals, Inc.
May 12, 2014	783347	Drill	Bexar	Brown #5	1,500	Final completion	02938321	Acquired from Premier Minerals, Inc.
May 12, 2014	783345	Drill	Bexar	Brown #4	1,500	Final completion	02938320	Acquired from Premier Minerals, Inc.
May 12, 2014	783344	Drill	Bexar	Brown #3	1,500	Final completion	02938319	Acquired from Premier Minerals, Inc.
May 12, 2014	783343	Drill	Bexar	Brown #2	1,500	Final completion	02938318	Acquired from Premier Minerals, Inc.
May 12, 2014	783342	Drill	Bexar	Brown #1	1,500	Final completion	02938317	Acquired from Premier Minerals, Inc.
Dec 18, 2013	775150	Drill	Bexar	Nancy #3	1,500	Final completion	02938306	Acquired from Premier Minerals, Inc.
Dec 18, 2013	775149	Drill	Bexar	Nancy #2	1,500	Final completion	02938305	Acquired from Premier Minerals, Inc.
Dec 18, 2013	775148	Drill	Bexar	Nancy #1	1,500	Final completion	02938304	Acquired from Premier Minerals, Inc.
Aug 1, 2013	767369	Drill	Bexar	Meagan #5	1,500	Final completion	02938300	Acquired from Premier Minerals, Inc.
Aug 1, 2013	767368	Drill	Bexar	Meagan #4	1,500	Final completion	02938299	Acquired from Premier Minerals, Inc.
Aug 1, 2013	767367	Drill	Bexar	Meagan #3	1,500	Final completion	02938298	Acquired from Premier Minerals, Inc.
Aug 1, 2013	767366	Drill	Bexar	Meagan #2	1,500	Final completion	02938297	Acquired from Premier Minerals, Inc.
Aug 1, 2013	767365	Drill	Bexar	Meagan #1	1,500	Final completion	02938296	Acquired from Premier Minerals, Inc.
Apr 25, 2013	760596	Drill	Bexar	Haecker #5	1,500	Final completion	02938293	Acquired from Premier Minerals, Inc.
Apr 25, 2013	760595	Drill	Bexar	Haecker #4	1,500	Final completion	02938292	Acquired from Premier Minerals, Inc.
Apr 25, 2013	760594	Drill	Bexar	Haecker #3	1,500	Final completion	02938294	Acquired from Premier Minerals, Inc.
Apr 25, 2013	760593	Drill	Bexar	Haecker #2	1,500	Final completion	02938291	Acquired from Premier Minerals, Inc.
Apr 25, 2013	760592	Drill	Bexar	Haecker #1	1,500	Final completion	02938290	Acquired from Premier Minerals, Inc.
Sep 9, 2011	723574	Drill	Frio	Peters #2	4,500	Final completion	16333525	Acquired from Premier Minerals, Inc.
May 3, 2011	715062	Drill	Frio	Peters #1	4,500	Final completion	16333470	Acquired from Premier Minerals, Inc.
May 6, 1983	193809	Drill	Bexar	Sawyer, N.C. #1	1,900	Final completion	02933002	Acquired from EL Dorado Oil & Gas Inc.