HEIDELBERG

Oil · District 08 · Lease #28565

Operator: PRIME OPERATING COMPANY

Cum Oil

276k BBL

Cum Gas

593k MCF

casinghead

Wells

8

Production

1993-01 — 2026-04

Peak Month

2026-04

Production History

Cum Oil: 275,544 BBL Cum Gas: 593,387 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,073 BBL/mo

Di (annual)

7.4%

b-factor

0.0

EUR

169,252 BBL

R-squared

0.736

type

exponential

Operator History (from monthly production reports)

1993-01 — 2026-07 PRIME OPERATING COMPANY 403 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PRIME OPERATING COMPANY18,7001985-04-19
5PRIME OPERATING COMPANY19,8001985-04-19
3PRIME OPERATING COMPANY28,7001985-04-15
6PRIME OPERATING COMPANY19,8001985-01-11
7PRIME OPERATING COMPANY19,8001984-05-31
8PRIME OPERATING COMPANY18,5001984-05-31
2PRIME OPERATING COMPANY18,7001984-02-21
1PRIME OPERATING COMPANY19,8001983-09-21