BERRY-LEHMAN "A"

Oil · District 01 · Lease #12208

Operator: VIOLA PROD., INC.

Cum Oil

3k BBL

Cum Gas

9 MCF

casinghead

Wells

3

Production

1993-01 — 1997-07

Peak Month

1993-02

Production History

Cum Oil: 3,066 BBL Cum Gas: 9 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

321 BBL/mo

Di (annual)

91.8%

b-factor

0.0

EUR

4,184 BBL

R-squared

0.675

type

exponential

Operator History (from monthly production reports)

1996-07 — 2026-07 VAC-U-LIFT PRODUCTION CO.,INC. 361 mo
1996-01 — 1996-06 NELMS BROS. OIL PROPERTIES INC. 6 mo
1995-05 — 1995-12 SCHAARON INTERNATIONAL ENERGY 8 mo
1995-02 — 1995-04 VIOLA PROD., INC. 3 mo
1993-01 — 1995-01 CHESAPEAKE OPERATING, INC. 25 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3VAC-U-LIFT PRODUCTION CO. INC.29,0001991-02-15
1VAC-U-LIFT PRODUCTION CO. INC.16,8821988-09-30
2VAC-U-LIFT PRODUCTION CO.,INC.46,9001988-09-30