UNIVERSITY 43

Oil // district 9 // lease#17569

op: SEM OPERATING COMPANY LLC

cum_oil

2.3M BBL

cum_gas

0 MCF

wells

30

production

2011-01 — 2026-03

peak_month

2012-10

-- production_history

cum_oil: 2,317,069 BBL cum_gas: 0 MCF

-- wells (30)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1010WCSEM OPERATING COMPANY LLC110,0002025-03-21
1012WBSEM OPERATING COMPANY LLC110,0002025-03-21
1014WCSEM OPERATING COMPANY LLC110,0002025-03-21
0914WCSEM OPERATING COMPANY LLC110,0002023-02-06
0902WCSEM OPERATING COMPANY LLC110,0002023-01-26
0906WCSEM OPERATING COMPANY LLC110,0002023-01-26
0910WCSEM OPERATING COMPANY LLC110,0002023-01-26
R903WCSEM OPERATING COMPANY LLC110,0002022-11-15
0911WCSEM OPERATING COMPANY LLC110,0002022-09-15
0924WBSEM OPERATING COMPANY LLC110,0002017-10-25
1002WCSEM OPERATING COMPANY LLC110,0002017-10-25
1016WBSEM OPERATING COMPANY LLC110,0002017-10-24
1018WBSEM OPERATING COMPANY LLC210,0002017-10-24
0906HSEM OPERATING COMPANY LLC46,7502016-11-02
0913HEOG RESOURCES, INC.16,7002012-06-25
0904HEOG RESOURCES, INC.36,7502012-02-28
0908HEOG RESOURCES, INC.36,7502012-02-28
1003HEOG RESOURCES, INC.26,7002012-02-28
1005HEOG RESOURCES, INC.26,7502012-02-28
1007HEOG RESOURCES, INC.26,7002012-02-28
1009HEOG RESOURCES, INC.26,7002012-02-28
1011HEOG RESOURCES, INC.26,7502012-02-28
0911HEOG RESOURCES, INC.26,8002011-12-20
0905HEOG RESOURCES, INC.26,7502011-12-19
0907HEOG RESOURCES, INC.16,7502011-12-19
0909HEOG RESOURCES, INC.26,8002011-12-19
0903HEOG RESOURCES, INC.16,7502011-12-12
0902HEOG RESOURCES, INC.16,8002011-05-19
0901HEOG RESOURCES, INC.16,8002011-04-13
1001HEOG RESOURCES, INC.16,8002010-10-08
EOF // data source: Texas Railroad Commission // 2026