X0305 4 2012-06-18 1 0001112412 ENDEAVOUR INTERNATIONAL CORP END 0001133521 STEELHEAD PARTNERS LLC 333 108TH AVE. NE BELLEVUE WA 98004 0 0 0 1 See Remarks (1) and (2) 0001327721 JOHNSTON JAMES MICHAEL 333 108TH AVE. NE BELLEVUE WA 98004 0 0 0 1 See Remarks (1) and (2) 0001327722 KLEIN BRIAN KATZ 333 108TH AVE. NE BELLEVUE WA 98004 0 0 0 1 See Remarks (1) and (2) (1) The reporting persons are: (i) Steelhead Partners, LLC ("Steelhead"), a registered investment advisor within the meaning of Rule 16a-1(a)(1)(v) under the Securities Exchange Act of 1934; and (ii) each of James Michael Johnston and Brian Katz Klein, Steelhead's member-managers. (2) The reporting persons are filing this Form 4 voluntarily to indicate that they are exiting from Section 16 reporting effective as of June 18, 2012 per General Instruction 1(b) to Form 4. Steelhead Partners, LLC; By: Brent Binge, General Counsel; /s/ Brent Binge 2012-06-22 /s/ Brent Binge, Attorney-In-Fact for J. Michael Johnston 2012-06-22 /s/ Brent Binge, Attorney-In-Fact for Brian K. Klein 2012-06-22