More evidence has emerged to suggest that Calgary billionaire Murray Edwards has changed his address to London, England — although the 56-year-old himself remains mum on the subject.

In its annual information form, Calgary-based Canadian Natural Resources Ltd. lists the address of its executive chairman and director as “London, United Kingdom.” The same filing a year ago showed his address as “Calgary/Banff, Alberta, Canada.”

In a similar filing last Wednesday, Magellan Aerospace Corp., a Mississauga, Ont., aircraft manufacturer in which Edwards holds 74 per cent of the shares and acts as chairman, also listed his residence as London.

That contradicted the annual information form filed by Calgary-based Ensign Energy Services Inc. the previous week, in which Edwards‘ residence is described as Calgary/Banff, as it has been for several years. He holds about 16 per cent of that company’s shares.

All three forms list his primary occupation as president of Edco Financial Holdings Ltd.

Edwards did not respond to an email or phone call request for comment on Monday.

Several oil and gas industry observers have told the Herald that Edwards was rumoured to be changing residency to the U.K. for tax reasons, but no one was able to say they have direct knowledge of that fact.

Income taxes for high earners in Alberta increased dramatically over the past year with the top federal/provincial combined marginal rate rising from 40.25 per cent in 2015 to 48 per cent in 2016.

To be considered a non-resident by Canada for tax purposes, a person must routinely live in another country or show they don’t have significant residential ties to Canada. Stays in the country may be limited to fewer than 183 days a year.

The finance and oil and gas magnate is also a part-owner of the Calgary Flames and owns ski resorts through Resorts of the Canadian Rockies.

dhealing@postmedia.com

Twitter.com/HealingSlowly