WHATLEY, E. M. R/A -B-

Oil · District 6E · Lease #7638

Operator: SND OPERATING, L.L.C.

Fields: EAST TEXAS

Cum Oil

775k BBL

Cum Gas

277k MCF

casinghead

Wells

8

Production

1993-01 — 2024-09

Peak Month

1995-07

Production History

Cum Oil: 775,120 BBL Cum Gas: 276,709 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,608 BBL/mo

Di (annual)

35.8%

b-factor

0.0

EUR

489,358 BBL

R-squared

0.728

type

exponential

Operator History (from monthly production reports)

2025-09 — 2026-07 ELMS OIL COMPANY 11 mo
2019-08 — 2025-08 BASA RESOURCES, INC. 73 mo
2015-01 — 2019-07 BREITBURN OPERATING L.P. 55 mo
2013-08 — 2014-12 QUANTUM RESOURCES MANAGEMENT,LLC 17 mo
2000-09 — 2013-07 SND OPERATING, L.L.C. 155 mo
1993-01 — 2000-08 AMOCO PRODUCTION COMPANY 92 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
19ELMS OIL COMPANY13,8001986-01-13
1042-183-86089ELMS OIL COMPANY------
1142-183-86090ELMS OIL COMPANY------
1242-183-86091ELMS OIL COMPANY------
1342-183-86092ELMS OIL COMPANY------
1842-183-86093ELMS OIL COMPANY------
842-183-86087ELMS OIL COMPANY------
942-183-86088ELMS OIL COMPANY------