"The objective of the present paper is to assist policy-makers, especially in developing countries, in taking full advantage of the changing and increasingly complex forms of relationship evolving between host Governments and TNCs [transnational corporations] in the petroleum sector ... The subject matter is concerned with a wide range of issues which arise during the exploration and development stages before production commences"--Preface. At head of title: United Nations Conference on Trade and Development. "UNCTAD/DTCI/21." "United Nations publication sales no. E.96.II.A.7"--T.p. verso.