WILLINGHAM

Oil · District 8A · Lease #70804

Operator: WESTERN CHIEF OPERATING, L.L.C.

Cum Oil

104k BBL

Cum Gas

283k MCF

casinghead

Wells

1

Production

2017-05 — 2024-03

Peak Month

2017-10

Production History

Cum Oil: 103,687 BBL Cum Gas: 283,012 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,169 BBL/mo

Di (annual)

204.7%

b-factor

0.7

EUR

84,973 BBL

R-squared

0.774

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 SOJOURNER DRILLING CORPORATION 19 mo
2017-05 — 2024-12 WESTERN CHIEF OPERATING, L.L.C. 92 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1 HSOJOURNER DRILLING CORPORATION211,0002017-04-06