SCHAFER "A"

Oil · District 7B · Lease #21427

Operator: STOVALL, HOWARD

Cum Oil

7k BBL

Cum Gas

221k MCF

casinghead

Wells

6

Production

1993-01 — 2026-03

Peak Month

1993-07

Production History

Cum Oil: 6,800 BBL Cum Gas: 220,539 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28 BBL/mo

Di (annual)

9.8%

b-factor

0.0

EUR

3,314 BBL

R-squared

0.353

type

exponential

Operator History (from monthly production reports)

2025-11 — 2026-07 CRYSTAL J OIL AND GAS LLC 9 mo
1997-12 — 2025-10 STOVALL, HOWARD 335 mo
1993-01 — 1997-11 LOGAN ENERGY CO. 59 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6 ACRYSTAL J OIL AND GAS LLC13,0001985-04-26
5 ACRYSTAL J OIL AND GAS LLC13,0001985-04-24
1 DCRYSTAL J OIL AND GAS LLC11,4041984-10-15
3 ACRYSTAL J OIL AND GAS LLC12,8501984-06-19
2 ACRYSTAL J OIL AND GAS LLC13,6501984-03-26
1 A42-133-35549CRYSTAL J OIL AND GAS LLC------