ROCKER "B-1949"

Oil · District 7C · Lease #10186

Operator: PARKER & PARSLEY DEVELOPMENT L.P

Cum Oil

8k BBL

Cum Gas

70k MCF

casinghead

Wells

2

Production

1993-01 — 1999-07

Peak Month

1996-05

Production History

Cum Oil: 7,814 BBL Cum Gas: 70,185 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

194 BBL/mo

Di (annual)

28.4%

b-factor

0.0

EUR

8,166 BBL

R-squared

0.544

type

exponential

Operator History (from monthly production reports)

1999-08 — 2003-06 BRECK OPERATING CORP. 47 mo
1998-01 — 1999-07 CONCHO RESOURCES INC. 19 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 (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6BRECK OPERATING CORP.18,4001984-10-25
5BRECK OPERATING CORP.18,3001983-10-06