< leases

HURRY-BRITT UNIT

Oil · District 03 · Lease #21542

Operator: ZARVONA ENERGY LLC

Fields: CALDWELL (AUSTIN CHALK)

Cum Oil

418k BBL

Cum Gas

1.1M MCF

casinghead

Wells

3

Production

1993-01 — 2026-01

Peak Month

1993-10

Production History

Cum Oil: 417,660 BBL Cum Gas: 1,058,559 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,982 BBL/mo

Di (annual)

26.9%

b-factor

0.3

EUR

372,672 BBL

R-squared

0.702

type

hyperbolic

Operator History (from monthly production reports)

2017-11 — 2026-07 PROLINE ENERGY RESOURCES INC 105 mo
2014-01 — 2017-10 ZARVONA ENERGY LLC 46 mo
2012-07 — 2013-12 LLEWELLIN OPERATING COMPANY, LLC 18 mo
1993-01 — 2012-06 COX & PERKINS EXPLORATION, INC. 234 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-051-31037PROLINE ENERGY RESOURCES INC48,5001996-08-07
142-051-33314PROLINE ENERGY RESOURCES INC312,0001993-06-24
342-051-30735PROLINE ENERGY RESOURCES INC28,2001980-04-29