Summary

Mahlon Pitney Bowman v. Continental Oil Company…

There is no substance in the objection that the excise tax, as applied to domestic sales and domestic use of gasoline, infringes plaintiff's rights under the due process and equal protection clauses of the Fourteenth Amendment. The contention that it interferes with interstate commerce because the gasoline is the product of other states already has been disposed of.
Source: Wikisource

Mahlon Pitney Bowman v. Continental Oil Company…

We see no reason to doubt the power of the state to select this commodity, as distinguished from others, in order to impose an excise tax upon its sale and use; and since the tax operates impartially upon all, and with territorial uniformity throughout the state, we deem it 'equal and uniform upon subjects of taxation of the same class,' within the meaning of section 1 of article 8.
Source: Wikisource

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