< leases

CALLIHAN, W. M. -A-

Oil · District 01 · Lease #987

Operator: LAY, J. D. ESTATE

Fields: LULING-BRANYON

Cum Oil

20k BBL

Cum Gas

8k MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

1993-05

Production History

Cum Oil: 19,710 BBL Cum Gas: 8,295 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2009-07 — 2026-07 CASTILLO OIL COMPANY LLC 205 mo
2007-07 — 2009-06 CENTEX DEVELOPMENT 24 mo
2005-08 — 2007-06 IPACT 23 mo
2000-11 — 2005-07 FORD, DON H. & ASSOC. 57 mo
1997-06 — 2000-10 LAY, J. D. ESTATE 41 mo
1993-01 — 1997-05 LAY, J. D. 53 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
642-055-33204CASTILLO OIL COMPANY LLC12,4001983-06-13
542-055-31630CASTILLO OIL COMPANY LLC12,4001980-11-17
442-055-31550CASTILLO OIL COMPANY LLC12,4001980-08-20
242-055-31507CASTILLO OIL COMPANY LLC12,4001980-07-29
142-055-80036CASTILLO OIL COMPANY LLC------