UNDERWOOD WEST 33 WA

Oil · District 08 · Lease #57864

Operator: SPIRIT O&G OPERATING, LLC

Cum Oil

76k BBL

Cum Gas

324k MCF

casinghead

Wells

1

Production

2022-07 — 2026-03

Peak Month

2025-12

Production History

Cum Oil: 75,539 BBL Cum Gas: 323,938 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,057 BBL/mo

Di (annual)

287.7%

b-factor

0.9

EUR

123,169 BBL

R-squared

0.931

type

hyperbolic

Operator History (from monthly production reports)

2025-03 — 2026-07 SPIRIT O&G OPERATING, LLC 17 mo
2022-11 — 2025-02 HOG OPERATING LLC 28 mo
2022-07 — 2022-10 DE IV OPERATING, LLC 4 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HSPIRIT O&G OPERATING, LLC18,7092022-07-01