GUITAR SOUTH 4-7

Oil // district 10 // lease#49382

op: PIONEER NATURAL RES. USA, INC.

cum_oil

625k BBL

cum_gas

0 MCF

wells

2

production

2017-05 — 2026-03

peak_month

2017-11

-- production_history

cum_oil: 625,085 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

32,722 BBL/mo

Di (annual)

216.9%

b-factor

1.1

EUR

988,399 BBL

R-squared

0.933

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4215HDE OPERATING LLC18,5002017-04-26
4315HSM ENERGY COMPANY29,6002017-03-14
EOF // data source: Texas Railroad Commission // 2026