THURSTON

Oil · District 8A · Lease #63055

Operator: SIMMONS, L.B. ENERGY, INC.

Cum Oil

143k BBL

Cum Gas

735 MCF

casinghead

Wells

9

Production

1993-01 — 2026-03

Peak Month

2004-09

Production History

Cum Oil: 142,941 BBL Cum Gas: 735 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,748 BBL/mo

Di (annual)

22.4%

b-factor

0.0

EUR

93,587 BBL

R-squared

0.599

type

exponential

Operator History (from monthly production reports)

2024-08 — 2026-07 ATLAS OPERATING LLC 24 mo
2023-06 — 2024-07 KINDER MORGAN PRODUCTION CO LLC 14 mo
2010-02 — 2023-05 PARALLEL PETROLEUM LLC 160 mo
2003-03 — 2010-01 PARALLEL PETROLEUM CORPORATION 83 mo
1996-07 — 2003-02 DIAMOND "M" PRODUCTION COMPANY 80 mo
1993-01 — 1996-06 SIMMONS, L.B. ENERGY, INC. 42 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14ATLAS OPERATING LLC13,5002004-04-01
12ATLAS OPERATING LLC13,5001989-01-06
11ATLAS OPERATING LLC13,4001988-04-28
10ATLAS OPERATING LLC13,5001980-12-09
8ATLAS OPERATING LLC13,5001980-12-09
9ATLAS OPERATING LLC13,5001980-12-09
7ATLAS OPERATING LLC13,5001980-09-09
6ATLAS OPERATING LLC13,5001980-08-25
542-415-01514ATLAS OPERATING LLC------