The U.S. Senate voted Thursday to confirm former North Dakota Gov. Doug Burgum to lead the Department of Interior. During his confirmation hearing, Burgum emphasized a commitment to advancing U.S. energy production in President Donald Trump’s administration.

Emails obtained by the Associated Press reveal Doug Burgum as North Dakota governor aided oil and gas executives and leveraged connections to boost his profile.

The former governor of North Dakota is promoting President Trump’s “energy dominance” agenda and wants more oil, gas and mining on public lands.