ULS 4-4

Oil · District 08 · Lease #41357

Operator: ZARVONA ENERGY LLC

Cum Oil

27k BBL

Cum Gas

29k MCF

casinghead

Wells

1

Production

2011-04 — 2026-04

Peak Month

2011-05

Production History

Cum Oil: 26,867 BBL Cum Gas: 28,866 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

658 BBL/mo

Di (annual)

155.9%

b-factor

1.3

EUR

32,272 BBL

R-squared

0.661

type

hyperbolic

Operator History (from monthly production reports)

2025-10 — 2026-07 SABALO II OPERATING, LLC 10 mo
2017-02 — 2025-09 ZARVONA ENERGY LLC 104 mo
2016-09 — 2017-01 PIONEER NATURAL RES. USA, INC. 5 mo
2011-04 — 2016-08 DEVON ENERGY PRODUCTION CO, L.P. 65 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SABALO II OPERATING, LLC211,5002010-07-29