UNIVERSITY 11 SEC. 11 -A-

Oil // district 10 // lease#36473

op: OXY USA INC.

cum_oil

159k BBL

cum_gas

0 MCF

wells

6

production

2000-12 — 2026-03

peak_month

2001-10

-- production_history

cum_oil: 159,263 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,134 BBL/mo

Di (annual)

28.1%

b-factor

0.4

EUR

142,796 BBL

R-squared

0.868

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9ARCO PERMIAN18,9002002-01-18
8ARCO PERMIAN18,9002001-04-27
7ARCO PERMIAN18,9002001-03-28
6ARCO PERMIAN57,2001999-03-11
5ARCO OIL & GAS CO.47,2001993-07-02
4ARCO OIL & GAS CO.47,2001992-07-08
EOF // data source: Texas Railroad Commission // 2026