< leases

RAMSEY, G. L.

Oil · District 09 · Lease #2509

Operator: VASTAR RESOURCES, INC.

Fields: WALNUT BEND (OIL CREEK SAND)

Cum Oil

14k BBL

Cum Gas

6k MCF

casinghead

Wells

4

Production

1993-01 — 1998-04

Peak Month

1995-08

Production History

Cum Oil: 13,913 BBL Cum Gas: 6,150 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

400 BBL/mo

Di (annual)

70.7%

b-factor

0.0

EUR

6,775 BBL

R-squared

0.475

type

exponential

Operator History (from monthly production reports)

2021-07 — 2026-07 SYDRI OPERATING, LLC 61 mo
2020-12 — 2021-06 TEAM OPERATING, L.L.C. 7 mo
2013-01 — 2020-11 MERIT ENERGY COMPANY 95 mo
2006-05 — 2012-12 CIMAREX ENERGY CO. OF COLORADO 80 mo
1999-06 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 83 mo
1994-03 — 1999-05 VASTAR RESOURCES, INC. 63 mo
1993-01 — 1994-02 ARCO OIL & GAS CO. 14 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2542-097-31168VASTAR RESOURCES, INC.25,8002013-09-20
2442-097-30866SYDRI OPERATING, LLC15,8002007-10-02
1342-097-02402SYDRI OPERATING, LLC14,6502001-07-03
2642-097-31217SYDRI OPERATING LLC15,6001977-11-22