BP has picked IBM to replace Accenture in managing all of BP's global enterprise applications, marking the end of a decade-long deal during which Accenture managed BP's SAP applications worldwide. BP also said that Wipro has made its new and shorter short-list of vendors building and maintaining applications for the huge global energy company.Earlier today, we reported that Tata and Infosys had been selected by BP CIO Dana Deasy to run different portions of BP's global applications environment as part of the company's year-long effort to significantly reduce the number of vendors involved in BP's ADAM (applications development and applications maintenance) efforts.

While BP did not release any financial details for the four outsourcing pacts, the IBM press release did include a key detail that was unique among the four carefully worded press releases from the four outsourcers: "IBM was awarded the largest part of the contract." And, since BP approved all four of the press releases, it certainly looks as though IBM came away with the lion's share of the huge outsourcing project.

Here's an overview of the BP business units for which each of the four outsourcers will be developing and maintaining applications:

Wipro: BP's Fuels Value Chain and Corporate businesses globally. Wipro will maintain BP's "Fuels Value Chain IT systems, as well as leveraging their expertise to deliver new IT solutions," Deasy said.

IBM: Enterprise applications and integrated service desk responsibilities. IBM will become a "strategic ADAM vendor for global SAP maintenance and system development centre," said BP CIO Deasy.

Tata: Refining, manufacturing and corporate IT maintenance work. "Additionally we see opportunities for TCS to help us deliver IT solutions to enable our upstream and trading businesses," Deasy said.

Infosys: Infosys will handle applications for BP's Integrated Supply and Trading business and its Exploration and Production business.

Deasy emphasized that all four efforts are intended to help BP "simplify and streamline processes to drive out cost."