EXHIBIT 23.3
CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS
We consent to the incorporation of the reference to the proved reserves, as of December 31, 2009, attributable to certain properties owned by HKN, Inc., which appear in the Annual Report on Form 10-K for the year ended December 31, 2009, in the Registration Statement on Form S-3, to be filed on or about October 29, 2010, of HKN, Inc.
| CREST Engineering Services, Inc. | |
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| BY: | /s/ Waterson Calhoun |
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| Waterson Calhoun |
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Tyler, Texas
October 26, 2010
