(California; Oil Fields) California State Mining Bureau, State Oil and Gas Supervisor. SUMMARY OF OPERATIONS CALIFORNIA OIL FIELDS MONTHLY CHAPTER. FIFTH [and SIXTH] ANNUAL REPORT OF THE STATE OIL AND GAS SUPERVISOR ISSUED BY CALIFORNIA STATE MINING BUREAU.

San Francisco: California State Mining Bureau, State Oil and Gas Supervisor, November 1919 - September 1920 (volume 5, number 5 - volume 6, number 3). 23x15.5 cm (octavo), eleven issues, numerous maps, charts and graphs, many folded, original pictorial wrappers, bound in blue cloth with ribbon tie. (#167190)
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