There have been recent reports in the Ghanaian press, such as here, and here, mentioning the Cheney report and creation of (a) military base(s) in Ghana. I believe this is the report that is being cited (corrected from an earlier version):
Overview: PDF: Energy for America’s Future (8 pages)
Complete PDF version: PDF Report of the National Energy Policy Development Group (170 pages)

For a more complete bibliography of relevant documents, and much more relevant information and insight as to how this applies to Ghana and West Africa, see the bibliography at the end of this article:
Understanding AFRICOM: A Contextual Reading of Empire’s New Combatant Command part I.
The article is in three parts, part II and part III and a PDF version of the complete series is available. Each part has a bibliography at the end of the article text.