GERDES DEVELOPMENT CO., INC.

Oil · District 03 · Lease #11427

Operator: ERNEST OPERATING COMPANY

Cum Oil

48k BBL

Cum Gas

69k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1993-11

Production History

Cum Oil: 47,573 BBL Cum Gas: 68,790 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

232 BBL/mo

Di (annual)

5.5%

b-factor

0.0

EUR

47,704 BBL

R-squared

0.706

type

exponential

Operator History (from monthly production reports)

2017-02 — 2026-07 ERNEST OPERATING COMPANY 114 mo
1993-01 — 2017-01 BAR-MAC INVESTMENTS INC. 289 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3ERNEST OPERATING COMPANY13,6001978-01-06
2ERNEST OPERATING COMPANY13,6001977-08-11
142-287-30066ERNEST OPERATING COMPANY------