Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

The Energy Department ordered two coal-burning power plants to remain open, and the Environmental Protection Agency gave utilities more time to tackle toxic coal ash. By Lisa Friedman and Maxine ...

UK's Harbour Energy enters Gulf of Mexico with $3.2 billion LLOG deal Britain's North Sea-focused Harbour Energy said on Monday it would buy deepwater oil and gas exploration and production company ...