Indian IT bigwigs Tata Consultancy Services (TCS), Infosys Technologies and Wipro, along with American technology giant IBM, announced separately on Wednesday that they have bagged applications development and application management (ADAM) contracts from oil and gas major British Petroleum (BP). Although none of the firms said how much the deal was worth, analysts peg the total size around $1 billion.

The vendor consolidation exercise at BP was going on over the past one year and was meant to simplify business processes and achieve new levels of service quality. According to reports, BP was being serviced by around 30 IT vendors, a number that has now been brought down to four. A major company to have lost in the race is Mahindra Satyam.

Though TCS did not not reveal the duration of the contract, Infosys, Wipro and IBM said it was a five-year deal for each of them. TCS bagged BP’s refining, manufacturing and corporate IT maintenance work. Additionally, TCS is also expected to help BP deliver IT solutions to enable their upstream and trading businesses. N Chandrasekaran, COO and ED, TCS, said, “The engagement with BP underscores our ability to help global corporations become more competitive in the current economic scenario by reducing complexity through optimisation of their IT landscape and focus on delivering value through continuous innovation in services.”

Infosys said it would handle a large part of the business systems of BP for a five-year application outsourcing and support agreement.