Hess Corp., the $28.7 billion integrated oil and gas company, based in New York, promoted Sachin Mehra to vice president and treasurer. Mehra, 37, succeeds Robert J. Vogel, who is retiring after 18 years with Hess. Mehra came to the company last April as vice president and deputy treasurer. Prior to joining Hess, he spent a decade with General Motors Corp. in various treasury-related capacities in New York, Singapore, Brussels and Shanghai.

The $70.5 billion wealth management, capital markets and advisory company Merrill Lynch, based in New York, has appointed Noel B. Donohoe co-chief risk officer. Donohoe will share responsibility with Edmond N. Moriarty, who was appointed in September 2007. Donohoe joins Merrill from Dune Capital Management, where he most recently served as a partner and as chief operating officer. Prior to Dune he spent 11 years with Goldman Sachs, including heading firmwide risk, where he was responsible for global market risk. Six years before joining Goldman, Donohoe assumed various risk and finance positions at Salomon Smith Barney in London. His career began with PricewaterhouseCoopers in 1980 through 1987.

Time Warner Cable Inc., the $11.9 billion cable system provider, based in New York, named William F. Osbourn Jr. senior vice president and controller. Osbourn has served as vice president of technical accounting since joining the company in 2003. Prior to Time Warner Cable, Osbourn was executive director for external financial reporting and accounting policy for Time Warner. Beginning in 1987, he began a 14-year career with PricewaterhouseCoopers LLP, where he served in various capacities of increasing responsibility, eventually admitted to partnership in 2000.