Harvey is expected to leave behind billions of dollars in damages in its wake.
Here's a look at what energy companies and industry service companies are doing to help.
The Caterpillar Foundation donated $300,000 to the Red Cross to help with immediate relief efforts.
Cheniere Energy will make a $1 million donation to the Red Cross to help with relief and recovery efforts.
Chevron is making a $1 million donation to the Red Cross. The oil and gas company will also match donations made to relief efforts by its employees and retirees.
Exxon Mobil is donating $500,000 to Red Cross organizations along the U.S. Gulf Coast to aid with relief efforts.
The GE Foundation has donated $500,000 to the Red Cross. It will also match employee donations to participating disaster relief organizations.
Phillips 66 will contribute $1 million to the American Red Cross to assist relief efforts arising from Hurricane Harvey and the resultant flooding in southeast Texas.
Oil and gas company Range Resources announced a $100,000 donation to the Red Cross for Harvey relief aid.
The Sempra Energy Foundation will make an immediate contribution of $75,000 to the American Red Cross Hurricane Harvey Relief Fund and an additional $75,000 donation to Americares in support of relief efforts in Texas and Louisiana. The Sempra Energy Foundation also will match up to an additional $50,000 in Sempra Energy companies' employee donations.
The Southern Company Charitable Foundation will donate $100,000 to the American Red Cross to aid Hurricane Harvey relief efforts. In addition, the company has established a donation matching program for employee and retiree contributions.