Five top US law firms have won roles as a private equity consortium led by Apollo Global Management has agreed to acquire El Paso Corporation’s oil and gas exploration and production units in a $7.15bn (£4.5bn) leveraged buyout, reports The Am Law Daily.

El Paso announced last week that it had reached an agreement to sell the businesses to a group composed of Apollo, Access Industries and Riverstone Holdings. The deal reportedly marks the second-largest private equity takeover of an energy producer.