(Reuters) - Halliburton Co , the world's second-largest oilfield services company, on Monday reported a decline in quarterly profit but said it had more headway outside its home U.S. market, which has been turned upside down by a natural gas glut.

Its second-quarter profit fell to $679 million, or 73 cents per share, from $737 million, or 79 cents per share, a year ago. Analysts had expected a profit of 72 cents per share, according to Thomson Reuters I/B/E/S. Revenue rose 1 percent to $7.3 billion.

(Reporting by Braden Reddall in San Francisco; Editing by Maureen Bavdek)