BIG CREEK

Oil · District 8A · Lease #69441

Operator: SOJOURNER DRILLING CORPORATION

Cum Oil

58k BBL

Cum Gas

134k MCF

casinghead

Wells

1

Production

2008-12 — 2020-07

Peak Month

2009-10

Production History

Cum Oil: 58,276 BBL Cum Gas: 134,216 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,211 BBL/mo

Di (annual)

53.1%

b-factor

0.1

EUR

55,430 BBL

R-squared

0.792

type

hyperbolic

Operator History (from monthly production reports)

2012-10 — 2022-05 SOJOURNER DRILLING CORPORATION 116 mo
2011-12 — 2012-09 BRAHMAN OPERATING, L.L.C. 10 mo
2008-12 — 2011-11 ROUND ROCK RESOURCES, INC. 36 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HSOJOURNER DRILLING CORPORATION19,0002008-07-15