RUSSELL, L. B.

Oil · District 8A · Lease #64291

Operator: MARALO, LLC

Cum Oil

307k BBL

Cum Gas

154k MCF

casinghead

Wells

6

Production

1993-01 — 2026-04

Peak Month

2012-01

Production History

Cum Oil: 307,238 BBL Cum Gas: 153,766 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,450 BBL/mo

Di (annual)

8.8%

b-factor

0.0

EUR

195,940 BBL

R-squared

0.729

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 EXTEX OPERATING COMPANY 66 mo
2013-01 — 2021-01 LEGACY RESERVES OPERATING LP 97 mo
2004-12 — 2012-12 COG OPERATING LLC 97 mo
1999-01 — 2004-11 MARALO, LLC 71 mo
1993-01 — 1998-12 MARALO, INC. 72 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WEXTEX OPERATING COMPANY211,0002008-06-03
6EXTEX OPERATING COMPANY25,2252006-03-28
5EXTEX OPERATING COMPANY14,9001991-03-08
4EXTEX OPERATING COMPANY14,9001985-09-11
3EXTEX OPERATING COMPANY14,9001984-06-27
2EXTEX OPERATING COMPANY111,0001983-11-17