UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: February 8, 2017 4:00 P.M.
Form: S-3
CIK: 0001071993
Company Name: CONTANGO OIL & GAS CO
File Number: 333-215784
CIK: 0001596386
Company Name: CONTANGO VENTURE CAPITAL CORP
File Number: 333-215784-10
CIK: 0001596239
Company Name: CONTANGO ALTA INVESTMENTS, INC.
File Number: 333-215784-09
CIK: 0001596378
Company Name: CONTARO CO
File Number: 333-215784-08
CIK: 0001642326
Company Name: CONTANGO ROCKY MOUNTAIN INC
File Number: 333-215784-07
CIK: 0001596376
Company Name: CONTERRA CO
File Number: 333-215784-06
CIK: 0001596374
Company Name: CONTANGO OPERATORS, INC
File Number: 333-215784-05
CIK: 0001436080
Company Name: Contango Energy CO
File Number: 333-215784-04
CIK: 0001550972
Company Name: CRIMSON EXPLORATION OPERATING, INC.
File Number: 333-215784-03
CIK: 0000813779
Company Name: CRIMSON EXPLORATION INC.
File Number: 333-215784-02
CIK: 0001596470
Company Name: CONTANGO MINING Co
File Number: 333-215784-01