DUNN

Oil // district 10 // lease#33957

op: PIONEER NATURAL RES. USA, INC.

cum_oil

254k BBL

cum_gas

0 MCF

wells

6

production

1993-09 — 2026-03

peak_month

2014-06

-- production_history

cum_oil: 253,845 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,146 BBL/mo

Di (annual)

17.1%

b-factor

0.3

EUR

109,033 BBL

R-squared

0.624

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6PIONEER NATURAL RES. USA, INC.111,8252014-02-21
7PIONEER NATURAL RES. USA, INC.111,7252013-01-28
4PIONEER NATURAL RES. USA, INC.19,8002003-06-13
3PARKER & PARSLEY DEVELOPMENT CO.19,6001994-05-03
5PARKER & PARSLEY DEVELOPMENT CO.19,6001994-05-03
2TAMARAY, INC212,5001993-05-19
EOF // data source: Texas Railroad Commission // 2026