JEFFERS "28"

Oil · District 7C · Lease #7581

Operator: PARKER & PARSLEY DEVELOPMENT L.P

Fields: JOHN RAE (PENN)

Cum Oil

2k BBL

Cum Gas

84k MCF

casinghead

Wells

1

Production

1993-01 — 1997-06

Peak Month

1994-02

Production History

Cum Oil: 1,688 BBL Cum Gas: 84,474 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

1998-01 — 2001-08 CONCHO RESOURCES INC. 44 mo

1997-02 — 1997-12 COSTILLA ENERGY, INC. 11 mo

1996-06 — 1997-01 COSTILLA PETROLEUM CORPORATION 8 mo

1995-03 — 1996-05 PARKER & PARSLEY DEVELOPMENT L.P 15 mo

1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-413-30711	UPP OPERATING, LLC	1	8,250	1978-06-14