CURTIS "A"

Oil // district 10 // lease#32920

op: PIONEER NATURAL RES. USA, INC.

cum_oil

549k BBL

cum_gas

0 MCF

wells

9

production

1993-01 — 2026-03

peak_month

2013-03

-- production_history

cum_oil: 549,351 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,257 BBL/mo

Di (annual)

23.5%

b-factor

0.0

EUR

217,673 BBL

R-squared

0.708

type

exponential

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10PIONEER NATURAL RES. USA, INC.112,4002012-01-17
9PIONEER NATURAL RES. USA, INC.112,0002011-07-11
7PIONEER NATURAL RES. USA, INC.110,5002005-12-15
6PIONEER NATURAL RES. USA, INC.19,8002005-01-14
5PIONEER NATURAL RES. USA, INC.19,8002004-12-16
4PARKER & PARSLEY DEVELOPMENT CO.19,7501991-03-19
3PARKER & PARSLEY, LTD.19,7501990-10-24
2PARKER & PARSLEY, LTD.19,7501990-10-05
1PARKER & PARSLEY, LTD.19,7501990-10-04
EOF // multi-state drilling data platform // 2026