< leases

NAIL "3"

Oil · District 08 · Lease #27360

Operator: VALLA ENERGY CORPORATION

Fields: SPRABERRY (TREND AREA)

Cum Oil

176k BBL

Cum Gas

393k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

2012-06

Production History

Cum Oil: 175,840 BBL Cum Gas: 392,774 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,432 BBL/mo

Di (annual)

37.0%

b-factor

0.6

EUR

159,931 BBL

R-squared

0.894

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2000-09 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 292 mo
1997-07 — 2000-08 STEPHENS, AUTRY C. 38 mo
1997-03 — 1997-06 VALLA ENERGY CORPORATION 4 mo
1993-01 — 1997-02 JMW RESOURCES, INC. 50 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
342-317-37328DIAMONDBACK E&P LLC212,0002011-11-17
242-317-35968DIAMONDBACK E&P LLC112,0002010-04-19
142-317-10008DIAMONDBACK E&P LLC212,2901982-02-25