SCHAFER RANCH

Oil · District 10 · Lease #142

Operator: WO OPERATING COMPANY

Cum Oil

590k BBL

Cum Gas

1.4M MCF

casinghead

Wells

86

Production

1993-01 — 2026-04

Peak Month

1997-07

Production History

Cum Oil: 590,446 BBL Cum Gas: 1,355,571 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,418 BBL/mo

Di (annual)

3.9%

b-factor

0.0

EUR

639,669 BBL

R-squared

0.616

type

exponential

Operator History (from monthly production reports)

2019-01 — 2026-07 LARGE OPERATING LLC 91 mo
1996-07 — 2018-12 WO OPERATING COMPANY 270 mo
1993-01 — 1996-06 TEXACO E & P INC. 42 mo

Wells (86)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
216LARGE OPERATING LLC13,1832003-06-03
215LARGE OPERATING LLC13,4652001-12-21
296LARGE OPERATING LLC23,3002001-07-20
1DLARGE OPERATING LLC15,9902001-06-27
295RED LINE COMPANY, LTD.23,3002000-10-02
290LARGE OPERATING LLC13,3001994-07-08
293LARGE OPERATING LLC13,3001994-07-08
294LARGE OPERATING LLC13,3001994-07-08
291LARGE OPERATING LLC13,3001994-07-05
292LARGE OPERATING LLC13,3001994-07-05
142-065-81412LARGE OPERATING LLC------
1142-065-81426LARGE OPERATING LLC------
1242-065-81427LARGE OPERATING LLC------
1342-065-81428LARGE OPERATING LLC------
1442-065-81429LARGE OPERATING LLC------
1542-065-81430LARGE OPERATING LLC------
1642-065-81431LARGE OPERATING LLC------
1742-065-81432LARGE OPERATING LLC------
1842-065-81433LARGE OPERATING LLC------
1942-065-81434LARGE OPERATING LLC------
242-065-81414LARGE OPERATING LLC------
2042-065-81435LARGE OPERATING LLC------
2142-065-81436LARGE OPERATING LLC------
21442-065-81557LARGE OPERATING LLC------
21742-065-81558LARGE OPERATING LLC------
21942-065-81560LARGE OPERATING LLC------
2242-065-81437LARGE OPERATING LLC------
22042-065-81561LARGE OPERATING LLC------
22142-065-81562LARGE OPERATING LLC------
22242-065-00215LARGE OPERATING LLC------
22342-065-81564LARGE OPERATING LLC------
22442-065-81565LARGE OPERATING LLC------
22542-065-81566LARGE OPERATING LLC------
22642-065-81567LARGE OPERATING LLC------
22742-065-81568LARGE OPERATING LLC------
22842-065-81569LARGE OPERATING LLC------
22942-065-81570LARGE OPERATING LLC------
2342-065-81438LARGE OPERATING LLC------
23042-065-81571LARGE OPERATING LLC------
23142-065-81572LARGE OPERATING LLC------
23242-065-81573LARGE OPERATING LLC------
23342-065-81574LARGE OPERATING LLC------
23442-065-81575LARGE OPERATING LLC------
23542-065-81576LARGE OPERATING LLC------
23642-065-81577LARGE OPERATING LLC------
23742-065-81578LARGE OPERATING LLC------
23842-065-81579LARGE OPERATING LLC------
2442-065-81439LARGE OPERATING LLC------
2542-065-81440LARGE OPERATING LLC------
25642-065-81597LARGE OPERATING LLC------
25742-065-81598LARGE OPERATING LLC------
2642-065-81441LARGE OPERATING LLC------
26042-065-81600LARGE OPERATING LLC------
26142-065-81601LARGE OPERATING LLC------
26342-065-81603LARGE OPERATING LLC------
26542-065-81605LARGE OPERATING LLC------
26642-065-81606LARGE OPERATING LLC------
26742-065-81607LARGE OPERATING LLC------
26842-065-81608LARGE OPERATING LLC------
26942-065-81609LARGE OPERATING LLC------
2742-065-81442LARGE OPERATING LLC------
27042-065-81610LARGE OPERATING LLC------
27142-065-30077LARGE OPERATING LLC------
27242-065-81612LARGE OPERATING LLC------
27442-065-81613LARGE OPERATING LLC------
27542-065-81614LARGE OPERATING LLC------
27642-065-30020LARGE OPERATING LLC------
27742-065-30023LARGE OPERATING LLC------
27842-065-30024LARGE OPERATING LLC------
27942-065-30031LARGE OPERATING LLC------
2842-065-81443LARGE OPERATING LLC------
28042-065-30032LARGE OPERATING LLC------
28142-065-30030LARGE OPERATING LLC------
28242-065-30064LARGE OPERATING LLC------
2942-065-81444LARGE OPERATING LLC------
342-065-81416LARGE OPERATING LLC------
3042-065-81445LARGE OPERATING LLC------
3142-065-81446LARGE OPERATING LLC------
3242-065-81447LARGE OPERATING LLC------
3342-065-81448LARGE OPERATING LLC------
3A42-065-81417LARGE OPERATING LLC------
442-065-81418LARGE OPERATING LLC------
542-065-81420LARGE OPERATING LLC------
5A42-065-81421LARGE OPERATING LLC------
642-065-81422LARGE OPERATING LLC------
8W42-065-01603LARGE OPERATING LLC------