HARLAN -A-

Oil · District 10 · Lease #1469

Operator: WO OPERATING COMPANY

Cum Oil

288k BBL

Cum Gas

312k MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

1996-07

Production History

Cum Oil: 288,279 BBL Cum Gas: 311,530 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,211 BBL/mo

Di (annual)

43.3%

b-factor

1.1

EUR

301,627 BBL

R-squared

0.542

type

hyperbolic

Operator History (from monthly production reports)

2018-02 — 2026-07 PONDEROSA TX OPERATING LLC 102 mo
2008-10 — 2018-01 LEGACY RESERVES OPERATING LP 112 mo
2006-02 — 2008-09 WO OPERATING COMPANY 32 mo
1994-12 — 2006-01 MYRIAD RESOURCES CORPORATION 134 mo
1993-01 — 1994-11 PENNZOIL PETROLEUM COMPANY 23 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
24PONDEROSA TX OPERATING LLC12,9001996-05-22
21PONDEROSA TX OPERATING LLC12,9001996-03-18
22PONDEROSA TX OPERATING LLC12,9001996-03-18
23PONDEROSA TX OPERATING LLC12,9001996-03-18
20PONDEROSA TX OPERATING LLC12,9001995-12-13
19PONDEROSA TX OPERATING LLC12,8001987-07-08
7PONDEROSA TX OPERATING LLC12,7901987-02-05