ROLLINS RANCH

Oil · District 02 · Lease #8788

Operator: FIRST ROCK, INC.

Cum Oil

1k BBL

Cum Gas

12k MCF

casinghead

Wells

1

Production

2003-05 — 2004-02

Peak Month

2003-07

Production History

Cum Oil: 1,301 BBL Cum Gas: 12,076 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

555 BBL/mo

Di (annual)

841.6%

b-factor

0.2

EUR

1,017 BBL

R-squared

0.967

type

hyperbolic

Operator History (from monthly production reports)

2003-05 — 2012-10 FIRST ROCK, INC. 114 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1AFIRST ROCK INC.26,2002003-04-24