Warren Buffett’s Berkshire Hathaway has bought more shares of Occidental Petroleum. This comes after the oil and gas company’s stock fell more than 30% from its record high. Berkshire purchased 763,017 shares of Occidental on Friday for $35.

The Omaha, Nebraska-based conglomerate scooped up 763,000 shares of the Houston-based oil and gas producer on Friday for $35.7 million, according to a filing.

Not only are investors looking to dig into Berkshire's financials, they are also keenly awaiting Buffett's annual letter to shareholders that may offer commentary on investments and the economy.