Insider Buying activity CDEV REL US Centennial Holdings, LL Director May 18 Buy 0.94 973,362 910,483 85,315,847 May 18 06:23 PM CDEV REL US Centennial Holdings, LL Director May 15 Buy 0.87 543,192 470,296 84,342,485 May 18 06:23 PM CDEV REL US Centennial Holdings, LL Director May 14 Buy 0.81 559,466 454,846 83,799,293 May 18 06:23 PM CDEV Riverstone Non-ECI USRPI AIV, Director May 18 Buy 0.94 973,362 910,483 85,315,847 May 18 06:22 PM CDEV Riverstone Non-ECI USRPI AIV, Director May 15 Buy 0.87 543,192 470,296 84,342,485 May 18 06:22 PM CDEV Riverstone Non-ECI USRPI AIV, Director May 14 Buy 0.81 559,466 454,846 83,799,293 May 18 06:22 PM REL US Centennial Holdings, LL Director May 13 Buy 0.82 1,017,475 833,617 83,239,827 May 13 07:21 PM REL US Centennial Holdings, LL Director May 12 Buy 0.94 1,086,558 1,024,407 82,222,352 May 13 07:21 PM Riverstone Non-ECI USRPI AIV, Director May 12 Buy 0.94 1,086,558 1,024,407 82,222,352 May 13 07:20 PM Riverstone Non-ECI USRPI AIV, Director May 11 Buy 0.89 3,004,026 2,678,390 81,135,794 May 13 07:20 PM REL US Centennial Holdings, LL Director May 11 Buy 0.89 3,004,026 2,678,390 81,135,794 May 13 07:21 PM