RATLIFF "A"

Oil · District 7C · Lease #12460

Operator: SUMMIT PETROLEUM LLC

Cum Oil

114k BBL

Cum Gas

453k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1996-10

Production History

Cum Oil: 113,516 BBL Cum Gas: 453,454 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

537 BBL/mo

Di (annual)

5.1%

b-factor

0.1

EUR

123,149 BBL

R-squared

0.630

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2026-07 EXTEX OPERATING COMPANY 66 mo
2007-10 — 2021-01 LEGACY RESERVES OPERATING LP 160 mo
2007-05 — 2007-09 SUMMIT PETROLEUM LLC 5 mo
2001-04 — 2007-04 HENRY PETROLEUM LP 73 mo
1993-01 — 2001-03 HENRY PETROLEUM CORP. 99 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1EXTEX OPERATING COMPANY18,6001988-02-04