FIRST

Oil · District 8A · Lease #60498

Operator: RUSSELL, L. J. OIL COMPANY

Cum Oil

446k BBL

Cum Gas

399 MCF

casinghead

Wells

9

Production

1993-01 — 2026-04

Peak Month

2005-01

Production History

Cum Oil: 446,378 BBL Cum Gas: 399 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,811 BBL/mo

Di (annual)

10.7%

b-factor

0.7

EUR

329,343 BBL

R-squared

0.901

type

hyperbolic

Operator History (from monthly production reports)

2008-02 — 2026-07 RUSSELL, L. J. OIL COMPANY 222 mo
1993-01 — 2008-01 RUSSELL, C. M. OIL COMPANY 181 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4CRUSSELL, L. J. OIL COMPANY23,3001984-12-31
142-415-01931RUSSELL, L. J. OIL COMPANY------
242-415-01932RUSSELL, L. J. OIL COMPANY------
342-415-02123RUSSELL, L. J. OIL COMPANY------
442-415-01933RUSSELL, L. J. OIL COMPANY------
5C42-415-30003RUSSELL, L. J. OIL COMPANY------
642-415-30110RUSSELL, L. J. OIL COMPANY------
742-415-30148RUSSELL, L. J. OIL COMPANY------
842-415-30844RUSSELL, L. J. OIL COMPANY------