< leases

CALVERLEY 36B-25A-A

Oil · District 08 · Lease #51418

Operator: VITAL ENERGY, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

634k BBL

Cum Gas

1.8M MCF

casinghead

Wells

3

Production

2018-07 — 2026-04

Peak Month

2018-08

Production History

Cum Oil: 634,014 BBL Cum Gas: 1,786,396 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

34,897 BBL/mo

Di (annual)

440.5%

b-factor

1.6

EUR

1,273,018 BBL

R-squared

0.894

type

hyperbolic

Operator History (from monthly production reports)

2026-01 — 2026-07 CRESCENT ENERGY OPERATING, LLC 7 mo
2023-02 — 2025-12 VITAL ENERGY, INC. 35 mo
2021-10 — 2023-01 LAREDO PETROLEUM, INC. 16 mo
2021-02 — 2021-09 PIONEER NATURAL RES. USA, INC. 8 mo
2018-07 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 31 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2801H42-173-37624CRESCENT ENERGY OPERATING, LLC37,9012017-06-15
4201H42-173-37623CRESCENT ENERGY OPERATING, LLC38,3372017-06-15
4801H42-173-37621CRESCENT ENERGY OPERATING, LLC39,4352017-06-15