KETTLER

Oil · District 7C · Lease #11878

Operator: SOJOURNER DRILLING CORPORATION

Cum Oil

5k BBL

Cum Gas

6k MCF

casinghead

Wells

2

Production

1993-01 — 2002-02

Peak Month

1993-01

Production History

Cum Oil: 4,975 BBL Cum Gas: 5,911 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

147 BBL/mo

Di (annual)

58.6%

b-factor

0.7

EUR

7,338 BBL

R-squared

0.880

type

hyperbolic

Operator History (from monthly production reports)

2002-07 — 2009-01 SOJOURNER DRILLING CORPORATION 79 mo
2000-04 — 2002-06 QUICKSILVER RESOURCES INC. 27 mo
1993-01 — 2000-03 MSR EXPLORATION, INC. 87 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2QUICKSILVER RESOURCES INC.24,5901988-04-27
1SOJOURNER DRILLING CORPORATION13,9501985-12-27