Halliburton Co. (NYSE: HAL) beat Wall Street estimates for quarterly profit on Jan. 22 as higher demand for its oilfield services in international markets offset a slowdown in North America.

Clients in North America, Halliburton’s biggest market by revenue, began pulling back on some drilling services last year amid transportation bottlenecks in the largest U.S. production region and after oil prices slid sharply in the fourth quarter.

An oil glut and concerns about a global economic slowdown have pushed U.S. crude down about 30% since their October high to about $53 per barrel.

Houston-based Halliburton said revenue from North America fell about 2% to $3.3 billion from a year earlier and dropped 11% from the third quarter.

International revenue rose to $2.6 billion from $2.5 billion from a year earlier. It rose 7% from the third quarter.

“In North America, the demand for completions services decreased during the fourth quarter, leading to lower pricing for hydraulic fracturing services,” CEO Jeff Miller said in a statement.

The number of active hydraulic fracturing fleets in the Permian basin fell to 140 in January, versus 192 in June of 2018, a 27% decline, according to data from consultancy Primary Vision.

Miller said the company would “dramatically respond” to the changing market and reduce capital spending. Shares of Schlumberger rose sharply last week after it said it would spend less in 2019.

Halliburton’s international business “continues to show signs of a steady recovery,” Miller added. The company saw an increase in demand for services in Argentina, which help offset some lower activity in North America.

Shares of Halliburton were down 1.5% at $31.76 before the opening bell on Wall Street on Jan. 22.

The company said net income attributable to the company was $664 million, or 76 cents per share, for the fourth quarter ended Dec. 31, compared with a loss of $824 million or 94 cents per share, a year earlier.

Excluding one-time items, the company earned 41 cents per share, beating analysts’ estimates of 37 cents per share, according to IBES data from Refinitiv.

Fourth-quarter revenue was largely flat at $5.94 billion.