UNIVERSITY -AU-

Oil · District 7C · Lease #498

Operator: STEPHENS, AUTRY C.

Cum Oil

30k BBL

Cum Gas

34k MCF

casinghead

Wells

4

Production

1993-01 — 2012-07

Peak Month

2012-04

Production History

Cum Oil: 30,026 BBL Cum Gas: 33,948 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

630 BBL/mo

Di (annual)

119.4%

b-factor

0.6

EUR

14,397 BBL

R-squared

0.673

type

hyperbolic

Operator History (from monthly production reports)

2023-12 — 2026-07 CIVITAS PERMIAN OPERATING, LLC 32 mo
2021-11 — 2023-11 HIBERNIA RESOURCES III, LLC 25 mo
2000-09 — 2021-10 ENDEAVOR ENERGY RESOURCES L.P. 254 mo
1998-12 — 2000-08 STEPHENS, AUTRY C. 21 mo
1993-01 — 1998-11 OXY USA INC. 71 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2CIVITAS PERMIAN OPERATING LLC112,0002012-05-11
1CIVITAS PERMIAN OPERATING LLC410,7602011-12-01
4CIVITAS PERMIAN OPERATING LLC310,3002011-12-01
3WCIVITAS PERMIAN OPERATING LLC17,2001992-06-08