Any attempt to analyze fully this comprehensive and extremely complex subject would require at least a book, not a short paper. Businessmen in the American petroleum industry came face to face with governmental institutions in the United States on every plane from townships, counties, towns, and cities to states and the Federal authority. Since petroleum products entered into American trade with practically every national entity on the globe, producers, manufacturers, and marketers of oil were vitally affected by foreign legislation and administration of the laws in the various lands. No scholar has ventured as yet to investigate fully and evaluate carefully the historical relationship between government and oilmen on a local or state level, much less on a national or world-wide basis. This paper can only show the breadth of the subject and the size of the task presented to the historian.