Who heads the executive branch of government in Oklahoma?

The answer is the Governor Mary Fallin

Explanation:

The official part of our Government is responsible for ensuring that the laws of the United States are complied. The President of the United States is the leader of the official branch. The President gets assistance from the Vice President, division heads called Cabinet individuals, and heads of free agencies. The President is in charge of executing and authorizing the laws composed by Congress and, keeping that in mind, chooses the leaders of the government organizations, including the Cabinet. The Vice President is additionally part of the Executive Branch, prepared to accept the Presidency should the need emerge.

The Governor Mary Fallin