ROCKER B-40

Oil · District 7C · Lease #9545

Operator: ZACHRY OPERATING

Cum Oil

36k BBL

Cum Gas

149k MCF

casinghead

Wells

3

Production

1993-01 — 2020-07

Peak Month

2014-01

Production History

Cum Oil: 36,289 BBL Cum Gas: 148,965 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

314 BBL/mo

Di (annual)

28.4%

b-factor

0.0

EUR

13,217 BBL

R-squared

0.360

type

exponential

Operator History (from monthly production reports)

2014-09 — 2026-07 DISCOVERY NATURAL RESOURCES LLC 143 mo
2011-02 — 2014-08 FIML NATURAL RESOURCES, LLC 43 mo
2003-10 — 2011-01 ZACHRY OPERATING 88 mo
1993-07 — 2003-09 YOCHAM OIL AND GAS COMPANY 123 mo
1993-01 — 1993-06 PARKER & PARSLEY DEVELOPMENT CO. 6 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
40KDISCOVERY NATURAL RESOURCES LLC110,0002012-08-08
2DISCOVERY NATURAL RESOURCES LLC17,5001982-02-01
1DISCOVERY NATURAL RESOURCES LLC17,5001981-12-31