UNIVERSITY"58-6"

Oil // district 9 // lease#16494

op: PIONEER NATURAL RES. USA, INC.

cum_oil

68k BBL

cum_gas

0 MCF

wells

3

production

2008-01 — 2026-03

peak_month

2008-02

-- production_history

cum_oil: 68,241 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

970 BBL/mo

Di (annual)

16.8%

b-factor

0.0

EUR

69,278 BBL

R-squared

0.497

type

exponential

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA, INC.210,7502009-10-12
1PIONEER NATURAL RES. USA, INC.110,5002008-05-08
2PIONEER NATURAL RES. USA, INC.110,3252007-10-15
EOF // multi-state drilling data platform // 2026