Del Monte Foods has acquired Natural Balance Pet Foods for an undisclosed amount. Del Monte shareholders include Centerview Capital, KKR and Vestar Capital Partners. Natural Balance backers included VMG Equity Partners. www.delmontefoods.com

Fidelity National Financial (NYSE: FNF) and THL Partners are in talks to acquire Lender Processing Services (NYSE: LPS) for approximately $2.9 billion, according to the NY Times. The deal would be at around $33 per share (14% premium to yesterday’s closing price), with THL holding a 20% stake in LPS. www.lpsvcs.com

Audax Group has acquired Chesapeake Research Review Inc., a Columbia, Md.-based provider of independent institutional review board (IRB) services. No financial terms were disclosed.www.chesapeakeirb.com

Archer Ltd., an Oslo-listed oil services company, has agreed to sell its North American rental and tubular division to Clearlake Capital Group for $244 million. www.archerwell.com

Blue Wolf Capital Partners and Atlas Holdings have agreed to acquire a control stake in Twin Rivers Paper Co. from Brookfield Asset Management for an undisclosed amount. Twin Rivers is a specialty paper and lumber company with operations in Maine and Canada. www.twinriverspaper.com

Peak Rock Capital has acquired Atlas Paper Mills LLC, a Miami, Fla.-based maker of tissue products made of 100% recycled fiber. No financial terms were disclosed. Sellers include Palm Beach Capital. www.atlaspapermills.com

Temasek Holdings has paid $500 million for around a 10% stake in UK financial data provider Markit, according to Reuters. www.markit.com

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