DEATHERAGE TRUST

Oil · District 8A · Lease #69218

Operator: ROBERTSON RESOURCES, INC.

Cum Oil

39k BBL

Cum Gas

0 MCF

Wells

1

Production

2008-02 — 2026-03

Peak Month

2008-03

Production History

Cum Oil: 39,020 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

249 BBL/mo

Di (annual)

4.1%

b-factor

0.0

EUR

63,949 BBL

R-squared

0.698

type

exponential

Operator History (from monthly production reports)

2025-03 — 2026-07 FLAT TOP OPERATING, LLC 17 mo
2020-02 — 2025-02 ROBERTSON RESOURCES, INC. 61 mo
2018-03 — 2020-01 BROOKS, BILLEE K. 23 mo
2008-02 — 2018-02 BROOKS, E. B., JR. 121 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1FLAT TOP OPERATING, LLC18,8502007-11-21