POWELL -A-

Oil · District 10 · Lease #581

Operator: THE OPERATING CO.

Cum Oil

23k BBL

Cum Gas

324k MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

1995-01

Production History

Cum Oil: 22,647 BBL Cum Gas: 324,050 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

541 BBL/mo

Di (annual)

345.8%

b-factor

0.4

EUR

3,073 BBL

R-squared

0.948

type

hyperbolic

Operator History (from monthly production reports)

2018-02 — 2026-07 PONDEROSA TX OPERATING LLC 102 mo
2007-10 — 2018-01 LEGACY RESERVES OPERATING LP 124 mo
1994-10 — 2007-09 THE OPERATING CO. 156 mo
1993-01 — 1994-09 GRAKIM OPERATING CO. 21 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14PONDEROSA TX OPERATING LLC13,0241986-01-27
43PONDEROSA TX OPERATING LLC13,1001980-12-31
44PONDEROSA TX OPERATING LLC13,1001980-12-30
1342-179-82930PONDEROSA TX OPERATING LLC------
2942-179-82934PONDEROSA TX OPERATING LLC------
4242-179-82936PONDEROSA TX OPERATING LLC------
842-179-82928PONDEROSA TX OPERATING LLC------