WINSTON BROTHERS

Oil · District 8A · Lease #3135

Operator: ROVER PETROLEUM OPERATING, LLC

Fields: KELLY-SNYDER

Cum Oil

59k BBL

Cum Gas

100k MCF

casinghead

Wells

2

Production

1993-01 — 2008-04

Peak Month

1998-05

Production History

Cum Oil: 59,249 BBL Cum Gas: 99,674 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

649 BBL/mo

Di (annual)

18.7%

b-factor

0.0

EUR

41,562 BBL

R-squared

0.546

type

exponential

Operator History (from monthly production reports)

2024-01 — 2026-07 GRAYROCK ENERGY II, LLC 31 mo
2017-06 — 2023-12 ROVER PETROLEUM OPERATING, LLC 79 mo
2004-12 — 2017-05 MERIT ENERGY COMPANY 150 mo
1993-01 — 2004-11 ANADARKO PETROLEUM CORPORATION 143 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4GRAYROCK ENERGY II LLC17,2001994-08-10
142-415-01863GRAYROCK ENERGY II LLC------