PARKER RANCHLAND 21

Oil · District 08 · Lease #44727

Operator: ROBERTSON RESOURCES, INC.

Cum Oil

146k BBL

Cum Gas

296k MCF

casinghead

Wells

4

Production

2013-11 — 2026-03

Peak Month

2014-07

Production History

Cum Oil: 146,265 BBL Cum Gas: 295,767 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,984 BBL/mo

Di (annual)

223.3%

b-factor

0.8

EUR

90,549 BBL

R-squared

0.655

type

hyperbolic

Operator History (from monthly production reports)

2025-03 — 2026-07 FLAT TOP OPERATING, LLC 17 mo
2022-08 — 2025-02 ROBERTSON RESOURCES, INC. 31 mo
2013-11 — 2022-07 ICA ENERGY OPERATING, L.L.C. 105 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6FLAT TOP OPERATING, LLC210,0002014-06-12
5FLAT TOP OPERATING, LLC210,0002014-06-06
2FLAT TOP OPERATING, LLC19,6002013-11-21
1FLAT TOP OPERATING, LLC29,6002013-07-11