< leases

BLACKSTONE UNIT A-86

Oil · District 06 · Lease #13912

Operator: SWIFT ENERGY OPERATING, LLC

Fields: BROOKELAND (AUSTIN CHALK, 8800)

Cum Oil

67k BBL

Cum Gas

342k MCF

casinghead

Wells

2

Production

1999-03 — 2026-03

Peak Month

2014-10

Production History

Cum Oil: 66,573 BBL Cum Gas: 342,165 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

800 BBL/mo

Di (annual)

15.2%

b-factor

0.0

EUR

63,037 BBL

R-squared

0.820

type

exponential

Operator History (from monthly production reports)

2026-03 — 2026-07 ATLAS OPERATING LLC 5 mo
2024-06 — 2026-02 BRG LONE STAR LTD. 21 mo
2021-07 — 2024-05 PRIZE EXPLORATION & PROD, LLC 35 mo
2019-05 — 2021-06 RKI ENERGY RESOURCES, LLC 26 mo
2017-08 — 2019-04 GRIT OIL & GAS, LLC 21 mo
2013-04 — 2017-07 KOVAR OPERATING, LLC 52 mo
2006-01 — 2013-03 SWIFT ENERGY OPERATING, LLC 87 mo
1999-03 — 2005-12 SWIFT ENERGY COMPANY 82 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2 H42-351-30662ATLAS OPERATING LLC312,6341996-08-26
1 H42-351-30655ATLAS OPERATING LLC212,5001996-06-28