HALSELL

Oil · District 7B · Lease #22787

Operator: NALL OIL & GAS

Cum Oil

30k BBL

Cum Gas

156k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1994-08

Production History

Cum Oil: 29,921 BBL Cum Gas: 156,139 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

231 BBL/mo

Di (annual)

9.6%

b-factor

0.0

EUR

28,484 BBL

R-squared

0.643

type

exponential

Operator History (from monthly production reports)

1995-09 — 2026-07 NALL OIL & GAS 371 mo
1993-01 — 1995-08 CROMEENS PETROLEUM, INC. 32 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6NALL OIL & GAS14,9001984-03-30
3NALL OIL & GAS14,9001983-08-18