MATHIS

Oil · District 7C · Lease #10820

Operator: SOJOURNER DRILLING CORPORATION

Cum Oil

26k BBL

Cum Gas

45k MCF

casinghead

Wells

4

Production

1993-01 — 2009-10

Peak Month

1993-08

Production History

Cum Oil: 25,525 BBL Cum Gas: 45,121 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

418 BBL/mo

Di (annual)

20.8%

b-factor

0.0

EUR

24,113 BBL

R-squared

0.872

type

exponential

Operator History (from monthly production reports)

2002-07 — 2013-05 SOJOURNER DRILLING CORPORATION 131 mo
2000-04 — 2002-06 QUICKSILVER RESOURCES INC. 27 mo
1993-01 — 2000-03 MSR EXPLORATION, INC. 87 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4SOJOURNER DRILLING CORPORATION14,3501985-06-13
3SOJOURNER DRILLING CORPORATION14,3041985-04-19
2SOJOURNER DRILLING CORPORATION14,4001985-04-10
1SOJOURNER DRILLING CORPORATION24,5001984-02-14