LEONARD "B"

Oil // district 10 // lease#34265

op: PIONEER NATURAL RES. USA, INC.

cum_oil

332k BBL

cum_gas

0 MCF

wells

7

production

1994-09 — 2026-03

peak_month

2013-04

-- production_history

cum_oil: 332,195 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,058 BBL/mo

Di (annual)

23.9%

b-factor

0.0

EUR

153,315 BBL

R-squared

0.777

type

exponential

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10PIONEER NATURAL RES. USA, INC.211,5002012-09-14
5PIONEER NATURAL RES. USA, INC.211,0002012-06-22
7PIONEER NATURAL RES. USA, INC.211,0502010-10-19
3PIONEER NATURAL RES. USA, INC.19,8002003-06-17
4PIONEER NATURAL RES. USA, INC.19,8002003-06-17
2PARKER & PARSLEY DEVELOPMENT CO.19,2501995-02-16
1WALKER, CHAS. L.411,1501994-09-13
EOF // data source: Texas Railroad Commission // 2026