UNIVERSITY "58-5"

Oil // district 9 // lease#16576

op: PIONEER NATURAL RES. USA, INC.

cum_oil

168k BBL

cum_gas

0 MCF

wells

4

production

2008-04 — 2022-05

peak_month

2010-08

-- production_history

cum_oil: 168,091 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

6,681 BBL/mo

Di (annual)

113.5%

b-factor

0.6

EUR

160,170 BBL

R-squared

0.959

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4PIONEER NATURAL RES. USA, INC.111,0002010-03-04
3PIONEER NATURAL RES. USA, INC.111,0002010-02-03
2PIONEER NATURAL RES. USA, INC.210,5002008-11-07
1PIONEER NATURAL RES. USA, INC.110,0002008-01-02
EOF // multi-state drilling data platform // 2026