Pioneer Natural Resources Co.

Closed shelf registration in a new filing on June 30 that covers up to roughly 21.2 million common shares expected to be sold from time to time in amounts and prices that will be determined at the time of the offering. The filing disclosed that beneficial shareholder Q-FPP (VIII) Investment Partners LLC, majority owned by funds managed by affiliates of Quantum Energy Partners, will sell its entire 2.5% stake, amounting to about 6.2 million common shares. Also selling will be Double Eagle Energy Holdings III LLC, which is majority owned by funds managed by affiliates of Apollo Global Management Inc.