ARCO-VASTAR UNIT A-172

Oil · District 06 · Lease #13031

Operator: VASTAR RESOURCES, INC.

Cum Oil

39k BBL

Cum Gas

262k MCF

casinghead

Wells

1

Production

1993-01 — 1997-06

Peak Month

1993-01

Production History

Cum Oil: 38,681 BBL Cum Gas: 261,850 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,379 BBL/mo

Di (annual)

309.7%

b-factor

0.4

EUR

47,585 BBL

R-squared

0.893

type

hyperbolic

Operator History (from monthly production reports)

1995-04 — 2000-07 UNION PACIFIC RESOURCES COMPANY 64 mo
1994-03 — 1995-03 VASTAR RESOURCES, INC. 13 mo
1993-01 — 1994-02 ARCO OIL & GAS CO. 14 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1UNION PACIFIC RESOURCES COMPANY214,0001991-05-30