< leases

ROOTS-DEEP

Oil · District 04 · Lease #12119

Operator: WELDER EXPLORATION & PROD., INC.

Fields: TAFT, NE. (5600)

Cum Oil

57k BBL

Cum Gas

4k MCF

casinghead

Wells

1

Production

1993-01 — 2016-02

Peak Month

1993-01

Production History

Cum Oil: 56,856 BBL Cum Gas: 4,141 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,117 BBL/mo

Di (annual)

104.1%

b-factor

1.4

EUR

77,854 BBL

R-squared

0.838

type

hyperbolic

Operator History (from monthly production reports)

2018-05 — 2026-07 SANDALWOOD EXPLORATION, L.P. 99 mo
2012-10 — 2018-04 WELDER EXPLORATION & PROD., INC. 67 mo
2012-04 — 2012-09 WALLIS ENERGY, INC. 6 mo
2002-05 — 2012-03 DEWBRE PETROLEUM CORPORATION 119 mo
1993-10 — 2002-04 LAMPERT EXPLORATION CORPORATION 103 mo
1993-05 — 1993-09 TRIDENT CORPORATION 5 mo
1993-01 — 1993-04 DALPORT OIL CORPORATION 4 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-409-32406SANDALWOOD EXPLORATION L.P.28,7001992-08-04