< leases

LEA, P.J. "B"

Oil · District 08 · Lease #37890

Operator: VANGUARD PERMIAN, LLC

Fields: LEA (PENN. DETRITAL)

Cum Oil

160k BBL

Cum Gas

249k MCF

casinghead

Wells

2

Production

2005-08 — 2026-04

Peak Month

2008-03

Production History

Cum Oil: 159,940 BBL Cum Gas: 249,168 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,760 BBL/mo

Di (annual)

429.5%

b-factor

1.5

EUR

90,503 BBL

R-squared

0.403

type

hyperbolic

Operator History (from monthly production reports)

2023-11 — 2026-07 FORMENTERA OPERATIONS LLC 33 mo
2022-07 — 2023-10 SLANT OPERATING, LLC 16 mo
2022-01 — 2022-06 CONTANGO RESOURCES, LLC 6 mo
2021-02 — 2021-12 CONTANGO RESOURCES, INC. 11 mo
2019-09 — 2021-01 GRIZZLY OP OF DELAWARE, LLC 17 mo
2015-05 — 2019-08 VANGUARD OPERATING, LLC 52 mo
2012-04 — 2015-04 VANGUARD PERMIAN, LLC 37 mo
2009-09 — 2012-03 ENCORE ENERGY PARTNERS OPER LLC 31 mo
2005-08 — 2009-08 ENCORE OPERATING, L.P. 49 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7042-103-35011FORMENTERA OPERATIONS LLC27,9202022-11-04
7142-103-35218FORMENTERA OPERATIONS LLC38,3702008-02-07