MATHERS, LEILA Y.

Oil · District 8A · Lease #66379

Operator: VALLA ENERGY CORPORATION

Fields: O'DONNELL, N. (MISSISSIPPIAN)

Cum Oil

44k BBL

Cum Gas

31k MCF

casinghead

Wells

1

Production

1993-01 — 2026-04

Peak Month

1997-03

Production History

Cum Oil: 43,979 BBL Cum Gas: 30,823 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

186 BBL/mo

Di (annual)

5.7%

b-factor

0.0

EUR

36,655 BBL

R-squared

0.585

type

exponential

Operator History (from monthly production reports)

2023-01 — 2026-07 SSC, INC. 43 mo

2000-09 — 2022-12 ENDEAVOR ENERGY RESOURCES L.P. 268 mo

1997-01 — 2000-08 STEPHENS, AUTRY C. 44 mo

1995-09 — 1996-12 VALLA ENERGY CORPORATION 16 mo

1993-01 — 1995-08 LYNX ENERGY COMPANY, INC. 32 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1403	42-305-30242	SSC, INC.	3	9,400	1989-09-08