delivered the opinion of the court.
Chapter 164, Oklahoma Laws of 1915, makes every person of the State liable to a tax upon his entire net income arising from all sources, except such as is exempt from taxation by some law of the United States or of the State. Under that statute Oklahoma seeks in these proceedings to hold the defendant, the plaintiff in error, liable for taxes for the years 1915, 1916, 1917 and 1918, upon net income derived by him as lessee from leases of restricted Indian (Creek and Osage) lands, the leases being of the kind dealt with in
Choctaw, Oklahoma & Gulf R. R. Co.
v.
Harrison,
In
Choctaw, Oklahoma & Gulf R. R. Co.
v.
Harrison,
The argument for the State is based primarily upon the cases sustaining taxes upon net income that include gains from interstate commerce,
Shaffer
v.
Carter,
We cannot assume that there was the oversight supposed. The decision in
In cases where the principal is absolutely immune from interference an inquiry is allowed into the sources from which net income is derived and if a part of it comes from such a source the tax is
pro tanto
void;
Pollock
v.
Farmers’ Loan & Trust Co.,
Judgment reversed.
