ALTMAN, R.F.

Oil · District 7B · Lease #25623

Operator: SOJOURNER DRILLING CORPORATION

Cum Oil

340k BBL

Cum Gas

20 MCF

casinghead

Wells

3

Production

1993-01 — 2026-03

Peak Month

2000-01

Production History

Cum Oil: 339,721 BBL Cum Gas: 20 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,346 BBL/mo

Di (annual)

41.1%

b-factor

0.5

EUR

178,116 BBL

R-squared

0.904

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 2026-07 SOJOURNER DRILLING CORPORATION 403 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4SOJOURNER DRILLING CORPORATION13,3001991-04-09
3SOJOURNER DRILLING CORPORATION13,3001990-09-21
1SOJOURNER DRILLING CORPORATION14,0001989-11-09