This is the twenty-third and final issue of Oil Pollution Abstracts, a basic reference guide to current scientific and technical literature relevant to terrestrial and aquatic oil pollution. This issue contains 450 bibliographic entries with abstracts, covering the years 1977 to 1980. The entries are arranged in eight major topical categories comprising thirty-seven specific subcategories. The major categories are as follows: Oil pollution detection, analysis and evaluation; oil pollution prevention, repsonse and control; environmental impacts of oil pollution; fate of oil in the environment; pollution aspects of oil exploration, development and production; pollution aspects of oil transport, transfer and storage; petroleum and petrochemical industry waste treatment and disposal; and miscellaneous publications.