The "Dino Dig, Inc." gas company has discovered large oil deposits in North Dakota over the last three years. With money from its company profits, it purchases controlling shares and equipment in a truck transportation company and a railroad transportation company. Both of the companies continue to operate under their original names, but now "Dino Dig, Inc." uses its newly obtained assets to more efficiently and cheaply transport its crude oil around the country. Dino Dig, Inc. is great at ________.