X0306 4 2017-12-15 0 0001659122 Rosehill Resources Inc. ROSE 0001685105 Quarls Harry 16200 PARK ROW, SUITE 300 HOUSTON TX 77084 1 0 0 0 Class A Common Stock 2017-12-15 4 P 0 2680 8.43 A 25109 D Class A Common Stock 2017-12-18 4 P 0 2320 8.55 A 27429 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.20 to $8.57, inclusive. The reporting person undertakes to provide to Rosehill Resources Inc., any security holder of Rosehill Resources Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.39 to $8.67, inclusive. The reporting person undertakes to provide to Rosehill Resources Inc., any security holder of Rosehill Resources Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (2) to this Form 4. /s/ Greg Henson, Attorney-in-Fact 2017-12-19