VOLLMAR FEE -13-

Oil · District 08 · Lease #27626

Operator: N & O OIL CO.

Cum Oil

115k BBL

Cum Gas

2.2M MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1994-05

Production History

Cum Oil: 115,274 BBL Cum Gas: 2,241,986 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,029 BBL/mo

Di (annual)

18.4%

b-factor

0.6

EUR

119,842 BBL

R-squared

0.932

type

hyperbolic

Operator History (from monthly production reports)

2022-03 — 2026-07 N & O OIL CO. 53 mo
1993-01 — 2022-02 FOUR C OIL & GAS CORP. 350 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3N & O OIL CO.15,5001989-12-14
2N & O OIL CO.15,6001982-11-18
1N & O OIL CO.15,8001982-07-14