CHAMBERS -119-

Oil · District 10 · Lease #6928

Operator: PLAINS EXPLORATION & PROD. CO.

Cum Oil

80k BBL

Cum Gas

15k MCF

casinghead

Wells

2

Production

1993-08 — 2016-11

Peak Month

1996-07

Production History

Cum Oil: 79,727 BBL Cum Gas: 15,002 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

784 BBL/mo

Di (annual)

21.2%

b-factor

0.2

EUR

54,920 BBL

R-squared

0.604

type

hyperbolic

Operator History (from monthly production reports)

2019-09 — 2026-07 BCE-MACH II LLC 83 mo
2015-01 — 2019-08 ENERVEST OPERATING, L.L.C. 56 mo
2012-04 — 2014-12 LINN OPERATING, INC. 33 mo
2011-09 — 2012-03 PLAINS EXPLORATION & PROD. CO. 7 mo
2009-03 — 2011-08 LATIGO PETROLEUM, INC. 30 mo
2003-12 — 2009-02 LATIGO PETROLEUM TEXAS, LP 63 mo
1993-08 — 2003-11 ALPAR RESOURCES, INC. 124 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ALPAR RESOURCES INC.37,0001996-06-11
1ALPAR RESOURCES INC.19,3901993-10-06