As US President-elect Donald Trump assembles his energy team with the aim of expanding oil and gas production in his second term, there may be pressure on allies to import US oil. However, South Korean oil companies, heavily reliant on Middle Eastern suppliers, might hesitate to switch to US crude, industry sources said Monday. Over the weekend, Trump tapped Chris Wright, CEO of Liberty Energy, a natural gas fracking company, as the secretary of energy, and North Dakota Gov. Doug Burgum to head