HERRING RANCH

Oil · District 02 · Lease #8823

Operator: AMPAK OIL COMPANY

Cum Oil

65k BBL

Cum Gas

105k MCF

casinghead

Wells

5

Production

2003-09 — 2026-03

Peak Month

2005-04

Production History

Cum Oil: 64,933 BBL Cum Gas: 104,804 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,080 BBL/mo

Di (annual)

28.6%

b-factor

0.0

EUR

45,281 BBL

R-squared

0.764

type

exponential

Operator History (from monthly production reports)

2003-09 — 2026-07 AMPAK OIL COMPANY 275 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2AMPAK OIL COMPANY36,0002024-07-16
5AMPAK OIL COMPANY26,0002021-11-19
7AMPAK OIL COMPANY25,8002021-10-08
3AMPAK OIL COMPANY16,0002003-12-11
1AMPAK OIL COMPANY16,0002003-06-16