STERLING "W" FEE

Oil · District 08 · Lease #57970

Operator: BURK ROYALTY CO., LTD.

Cum Oil

5k BBL

Cum Gas

84k MCF

casinghead

Wells

4

Production

2020-02 — 2026-04

Peak Month

2022-04

Production History

Cum Oil: 5,487 BBL Cum Gas: 83,783 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

402 BBL/mo

Di (annual)

659.3%

b-factor

1.4

EUR

8,750 BBL

R-squared

0.544

type

hyperbolic

Operator History (from monthly production reports)

2020-11 — 2026-07 BURK ROYALTY CO., LTD. 68 mo
2020-02 — 2020-02 BOSQUE TEXAS OIL LLC 1 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5BURK ROYALTY CO., LTD.110,8002011-09-01
2BURK ROYALTY CO., LTD.28,5002008-10-23
4BURK ROYALTY CO., LTD.28,4602006-07-14
1BURK ROYALTY CO., LTD.38,5002002-09-26