CRAWFORD & RITCHIE 'A'

Oil · District 7B · Lease #28455

Operator: RANGER OPERATING CO.

Cum Oil

47k BBL

Cum Gas

27k MCF

casinghead

Wells

3

Production

1998-05 — 2009-06

Peak Month

2000-03

Production History

Cum Oil: 47,320 BBL Cum Gas: 26,563 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,516 BBL/mo

Di (annual)

57.8%

b-factor

0.3

EUR

44,677 BBL

R-squared

0.896

type

hyperbolic

Operator History (from monthly production reports)

2007-03 — 2009-09 RANGER OPERATING CO. 31 mo
1998-05 — 2007-02 BANDERA PETROLEUM, INC. 106 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
50RANGER OPERATING CO.21,9501999-12-07
51RANGER OPERATING CO.21,9501999-12-07
1RANGER OPERATING CO.11,9501998-01-06