BIG TEX SOUTH

Oil · District 08 · Lease #41006

Operator: WHITING OIL AND GAS CORPORATION

Cum Oil

8k BBL

Cum Gas

41k MCF

casinghead

Wells

2

Production

2010-12 — 2017-11

Peak Month

2011-03

Production History

Cum Oil: 7,910 BBL Cum Gas: 40,804 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

811 BBL/mo

Di (annual)

179.1%

b-factor

0.4

EUR

8,908 BBL

R-squared

0.707

type

hyperbolic

Operator History (from monthly production reports)

2025-07 — 2026-07 SWORDFISH ENERGY OPERATING, LLC 13 mo
2020-10 — 2025-06 PECOS RIVER EXPLORATION, LLC 57 mo
2020-02 — 2020-09 PARSLEY ENERGY OPERATIONS, LLC 8 mo
2014-03 — 2020-01 JAGGED PEAK ENERGY LLC 71 mo
2010-12 — 2014-02 WHITING OIL AND GAS CORPORATION 39 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2701HSWORDFISH ENERGY OPERATING LLC311,5002011-06-17
501SWORDFISH ENERGY OPERATING LLC211,0002010-10-01