Schlumberger Ltd. will reduce activity in Venezuela after the world’s largest oil services provider failed to collect enough payments from the national oil company. The reduction will take place this month in close coordination with all customers in Venezuela to continue servicing those with available cash flow, the Houston- and Paris-based contractor said in a statement Tuesday. Venezuela, which holds the biggest oil reserves of any country, has been battered by the collapse of prices as most of the government’s revenue comes from petrodollars. In October, Schlumberger was said to be shifting some of its workers from Brazil to Venezuela, reinforcing the contractor’s commitment at the time as others in the industry pulled back. By late January, Schlumberger said it had entered into a deal with Petroleos de Venezuela SA during the fourth quarter to receive certain fixed assets in lieu of payment of about $200 million of accounts […]