STERLING 'Z' FEE

Oil · District 08 · Lease #57985

Operator: BURK ROYALTY CO., LTD.

Cum Oil

676 BBL

Cum Gas

2k MCF

casinghead

Wells

1

Production

2020-11 — 2026-04

Peak Month

2022-12

Production History

Cum Oil: 676 BBL Cum Gas: 2,471 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

34 BBL/mo

Di (annual)

268.2%

b-factor

1.0

EUR

545 BBL

R-squared

0.679

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2BURK ROYALTY CO., LTD.38,4002007-09-06