STERLING "K" FEE

Oil · District 08 · Lease #57975

Operator: BURK ROYALTY CO., LTD.

Cum Oil

9k BBL

Cum Gas

48k MCF

casinghead

Wells

9

Production

2020-11 — 2026-04

Peak Month

2026-04

Production History

Cum Oil: 9,403 BBL Cum Gas: 47,788 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

221 BBL/mo

Di (annual)

58.2%

b-factor

2.0

EUR

30,442 BBL

R-squared

0.532

type

hyperbolic

Operator History (from monthly production reports)

2020-11 — 2026-07 BURK ROYALTY CO., LTD. 68 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6BURK ROYALTY CO., LTD.28,1502014-02-25
7BURK ROYALTY CO., LTD.27,9502013-07-11
3BURK ROYALTY CO., LTD.38,0612010-04-09
4BURK ROYALTY CO., LTD.28,0102008-09-30
2BURK ROYALTY CO., LTD.28,0802008-08-22
1BURK ROYALTY CO., LTD.17,9102008-03-25
5BURK ROYALTY CO., LTD.28,0662007-08-04
12BURK ROYALTY CO., LTD.28,0002006-11-29
10BURK ROYALTY CO., LTD.28,0502006-10-30