The Federal Oil Conservation Board (FOCB) was created by United States president Calvin Coolidge in 1924 to investigate conditions in the oil industry. It was superseded by the in 1934.
The Federal Oil Conservation Board (FOCB) was created by United States president Calvin Coolidge in 1924 to investigate conditions in the oil industry. It was superseded by the in 1934. (en)
The Federal Oil Conservation Board (FOCB) was created by United States president Calvin Coolidge in 1924 to investigate conditions in the oil industry. It was superseded by the in 1934. (en)