< leases

BERRY ONE

Oil · District 08 · Lease #31660

Operator: VIOLA PROD., INC.

Fields: WARD, SOUTH

Cum Oil

48k BBL

Cum Gas

44k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

1996-11

Production History

Cum Oil: 47,889 BBL Cum Gas: 44,411 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

450 BBL/mo

Di (annual)

22.6%

b-factor

0.5

EUR

40,491 BBL

R-squared

0.687

type

hyperbolic

Operator History (from monthly production reports)

2026-06 — 2026-07 HAILSTONE RESOURCES, LLC 2 mo
2019-02 — 2026-05 RECOVERY OPERATING LP 88 mo
2014-04 — 2019-01 D & V OIL CO., LP 58 mo
1995-12 — 2014-03 FISHER OIL CO. 220 mo
1993-05 — 1995-11 VIOLA PROD., INC. 31 mo
1993-01 — 1993-04 ASSOCIATED OPERATING & EXPLOR. 4 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-475-33854RECOVERY OPERATING LP12,9991987-12-31
242-475-33857RECOVERY OPERATING LP12,9991987-12-31
342-475-33858RECOVERY OPERATING LP12,9991987-12-31
442-475-33855RECOVERY OPERATING LP12,9991987-12-31