SIEBER

Oil · District 8A · Lease #68772

Operator: STEWARD ENERGY II, LLC

Cum Oil

97k BBL

Cum Gas

55k MCF

casinghead

Wells

2

Production

2005-03 — 2019-02

Peak Month

2005-08

Production History

Cum Oil: 97,131 BBL Cum Gas: 55,320 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,302 BBL/mo

Di (annual)

37.5%

b-factor

0.2

EUR

91,956 BBL

R-squared

0.921

type

hyperbolic

Operator History (from monthly production reports)

2025-03 — 2026-07 BURK ROYALTY CO., LTD. 17 mo
2022-04 — 2025-02 STEWARD ENERGY II, LLC 35 mo
2016-04 — 2022-03 CUSTER & WRIGHT OPERATING, INC. 72 mo
2005-03 — 2016-03 NORTHSTAR OPERATING COMPANY 133 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2BURK ROYALTY CO. LTD.212,4002016-07-06
1BURK ROYALTY CO. LTD.211,9832004-12-29