NORTH WALNUT BEND UNIT

Oil · District 09 · Lease #26978

Operator: VASTAR RESOURCES, INC.

Cum Oil

633k BBL

Cum Gas

152k MCF

casinghead

Wells

26

Production

1993-01 — 2026-04

Peak Month

1993-09

Production History

Cum Oil: 633,370 BBL Cum Gas: 151,730 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,845 BBL/mo

Di (annual)

18.2%

b-factor

0.6

EUR

686,423 BBL

R-squared

0.951

type

hyperbolic

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 (26)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
210SYDRI OPERATING, LLC15,9001996-03-28
116SYDRI OPERATING, LLC15,3501990-07-27
206LSYDRI OPERATING, LLC15,3501988-08-05
206USYDRI OPERATING, LLC15,3501988-08-05
115SYDRI OPERATING, LLC15,3501988-04-26
207SYDRI OPERATING, LLC25,3501988-04-06
1013USYDRI OPERATING, LLC15,3501988-02-19
113LSYDRI OPERATING, LLC15,3501988-02-19
114LSYDRI OPERATING, LLC15,3501988-02-09
114USYDRI OPERATING, LLC15,3501988-02-09
209SYDRI OPERATING, LLC25,3501988-02-09
112WSSYDRI OPERATING, LLC15,6001979-12-31
102ASYDRI OPERATING, LLC12,8001979-09-17
108SYDRI OPERATING, LLC22,6501979-08-13
109SYDRI OPERATING, LLC22,6501979-08-13
101SYDRI OPERATING, LLC15,1371979-04-30
111SYDRI OPERATING, LLC12,6501979-03-13
111LSYDRI OPERATING, LLC12,6501979-03-13
111USYDRI OPERATING, LLC12,6501979-03-13
110SYDRI OPERATING, LLC12,6501979-03-07
107WSSYDRI OPERATING, LLC15,6421977-12-12
10242-097-01043SYDRI OPERATING, LLC------
10442-097-01045SYDRI OPERATING, LLC------
10542-097-02027SYDRI OPERATING, LLC------
20442-097-83038SYDRI OPERATING, LLC------
20542-097-02780SYDRI OPERATING, LLC------