Premier Jason Kenney's principal adviser David Knight-Legg spent thousands of taxpayer dollars during four trips to London, U.K., Alberta's Official Opposition said Wednesday.

The NDP highlighted the expenses in a news release based on publicly available travel and expense disclosures.

Harrison Fleming, deputy press secretary with the premier's office, said one of Knight-Legg's tasks is to secure capital investment for Alberta — especially for the energy sector, but also for artificial intelligence and technology.

"This obviously includes meetings with companies and investors to sell the merits of Alberta," Fleming said in a written statement. "Albertans hired this government to bring back the job-creating investment that this province needs to get folks back to work."

According to the disclosures, Knight-Legg spent more than $18,000 on four trips to London in the last six months. He stayed in upscale hotels such as the Chilworth London Paddington.

Knight-Legg also billed Albertans for Uber rides, train tickets and meals, the disclosure documents show.

In total, he has claimed nearly $45,000 in expenses since the United Conservative Party was elected, according to the documents.

Knight-Legg earns about $195,000 a year.

I'm sure we got good value for our money.

What do we sell in the UK again?