PROBANDT -58A-

Oil · District 7C · Lease #12539

Operator: SWIFT ENERGY COMPANY

Cum Oil

810 BBL

Cum Gas

13k MCF

casinghead

Wells

1

Production

1993-01 — 1996-04

Peak Month

1993-05

Production History

Cum Oil: 810 BBL Cum Gas: 13,436 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

42 BBL/mo

Di (annual)

71.3%

b-factor

0.0

EUR

699 BBL

R-squared

0.369

type

exponential

Operator History (from monthly production reports)

2002-02 — 2003-05 SMITH PIPE OF ABILENE 16 mo
1996-04 — 2002-01 ELLISON LEASE OPERATING 70 mo
1994-04 — 1996-03 GOOCH & ISOM 24 mo
1994-01 — 1994-03 ECLIPSE SERVICES, INC. * 3 mo
1993-01 — 1993-12 SWIFT ENERGY COMPANY 12 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2SMITH PIPE OF ABILENE17,4001980-01-15