Valero Energy Corp.'s agreement to acquire rival Ultramar Diamond Shamrock Corp. is a bet that today's relatively high oil-refining profit margins will remain healthy for a long time to come. The ...

"Certainly, Diamond Shamrock is a recognized brand, and this will mean the disappearance of the brand of choice for many customers," Smith said.

The Diamond Shamrock Protest May Be Canceled Due to Lack of Interest. 'Bout Time. A week ago Monday, two people picketed outside Diamond Shamrock Kwik Stop on Martin Luther King Jr. Boulevard.

Valero Energy Corp. will pay $4 billion in cash and stock to buy rival Ultramar Diamond Shamrock Corp., creating a refining company that will be second only to Exxon Mobil in the United States ...

Valero's acquisition of Ultramar Diamond Shamrock Corp. (UDS) in December 2001 expanded its retail and branded wholesale network significantly, as did the company's wholesale expansion on the East ...

Valero Energy Corp. on Wednesday completed its acquisition of Ultramar Diamond Shamrock Corp., creating an energy powerhouse with annual revenues of $32 billion ...

A large solar array is set to go up on the former Diamond Shamrock superfund site using $129 million in EPA Climate Pollution Reduction grants.

The toxic legacy of what is now known as the Diamond Shamrock Superfund site had its start more than half a century ago, on an isolated industrial stretch along the Passaic River in Newark ...

The redevelopment of the former Diamond Shamrock site is now in the hands of the state. Cleveland-based Hemisphere was one of 27 statewide applicants attempting to receive funds from the voter-appr… ...

SAN ANTONIO (AP) _ Valero Energy Corp. is buying Texas rival Ultramar Diamond Shamrock Corp. for about $4 billion in cash and stock in a deal that will make Valero the second-largest U.S. refiner ...