Union Oil Company of California. Union Energy Mining Division. Casper (Wyo.) Office mineral exploration records, 1914-1995

Contains correspondence, reports, maps, and other records relating to the sale and lease of land for coal mining. (7boxes)

This series contains reports, correspondence, and maps pertaining to coal. An index for the "Minerals Exploration - Coal" reports is in box 19. (11 boxes)

Contains account ledgers, supply and gas inventories, invoices, operating procedure manuals, memos, administrative logs, and other records pertaining to the operation of the Union Oil Company of California's Union Energy Mining Division at the Casper, Wyoming office. (9 boxes)

This series contains reports, maps, correspondence, logs, leases, agreements, certificates, claims, and other records pertaining to projects at the Casper, Wyoming office. (34 boxes)

This series contains files originally arranged by geographic or subject heading. Materials include reports by Union Oil Company of California and others, published articles, maps, field notes, and correspondence. Most of it concerns coal. (11 boxes)

Contains topographical and geological maps from various states and countries, but Wyoming, Colorado, Montana, and North Dakota predominate. Please see box 19 for a more detailed index of boxes 126 and 127. (59 boxes)