OBRIEN, J. J.

Oil · District 02 · Lease #1409

Operator: EMERALD OIL & GAS LC

Fields: REFUGIO OLD

Cum Oil

55k BBL

Cum Gas

134k MCF

casinghead

Wells

4

Production

1993-01 — 2006-01

Peak Month

2005-04

Production History

Cum Oil: 55,111 BBL Cum Gas: 134,237 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2016-02 — 2026-07 EAGLEFORD OPERATING, INC. 126 mo
1997-02 — 2016-01 EMERALD OIL & GAS LC 228 mo
1996-10 — 1997-01 COMPRESSION - TRANS CARRIERS INC 4 mo
1993-01 — 1996-09 CARDINAL OPERATING CORPORATION 45 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2EAGLEFORD OPERATING INC.16,5492007-12-17
201EMERALD OIL & GAS LC37,0002003-07-21
342-391-82077EAGLEFORD OPERATING INC.------
942-391-03812EAGLEFORD OPERATING INC.------