The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ANADARKO PETE CORP COM 032511107 84,238 1,150,000 SH   SOLE   1,150,000 0 0
CACTUS INC CL A 127203107 35,480 1,050,000 SH   SOLE   1,050,000 0 0
EXTRACTION OIL AND GAS INC COM 30227M105 11,129 757,600 SH   SOLE   757,600 0 0
GRAN TIERRA ENERGY INC COM 38500T101 11,215 3,250,835 SH   SOLE   3,250,835 0 0
MARATHON OIL CORP COM 565849106 93,870 4,500,000 SH   SOLE   4,500,000 0 0
OASIS PETE INC NEW COM 674215108 102,139 7,875,000 SH   SOLE   7,875,000 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 50,208 600,000 SH   SOLE   600,000 0 0
PARSLEY ENERGY INC CL A 701877102 63,588 2,100,000 SH   SOLE   2,100,000 0 0
PIONEER NAT RES CO COM 723787107 87,050 460,000 SH   SOLE   460,000 0 0
SENTINEL ENERGY SVCS INC UNIT 11/02/2022 G8062D128 20,685 2,050,000 SH   SOLE   2,050,000 0 0
WHITING PETE CORP NEW COM NEW 966387409 79,080 1,500,000 SH   SOLE   1,500,000 0 0
WILDHORSE RESOURCE DEV CORP COM 96812T102 42,605 1,680,000 SH   SOLE   1,680,000 0 0
WPX ENERGY INC COM 98212B103 108,180 6,000,000 SH   SOLE   6,000,000 0 0