Harriet Cross's career is defined less by energy expertise than by the gap between what Westminster assumes about a north east Scotland MP and what her actual background provides. She is not an oil and gas executive. She is a Chartered Rural Surveyor who advocates for the energy sector because it employs her constituents, not because she worked in it.

Harriet Iona Cross was born around 1990 in Harrogate, North Yorkshire, and grew up in the Republic of Ireland, attending Bandon Grammar School in County Cork. Her father moved the family to Braemar in Aberdeenshire in her mid teens when he took over the community pharmacy there. She studied zoology at Imperial College London and completed an MSc in Rural Land and Business Management at the University of Reading, graduating with distinction. She gained her professional chartership in Cambridge before returning to Aberdeenshire in 2018.

As a Chartered Rural Surveyor she worked across Aberdeenshire and the Highlands with farmers, landowners and rural communities on valuations, infrastructure schemes and land management. That gives her direct understanding of farming, land use, rural economics and infrastructure, not energy industry operations. Her advocacy for oil and gas comes from representing a constituency where the sector employs tens of thousands, not from professional experience within it.

She stood as the Scottish Conservative candidate for Aberdeen Donside at the 2021 Scottish Parliament election, finishing second to the SNP's Jackie Dunbar with 9,488 votes, 26.4 per cent, and was ninth on the party's North East Scotland regional list.

She was elected MP for the newly created Gordon and Buchan constituency on 4 July 2024 with a majority of 878, or 2.0 per cent, defeating the SNP incumbent Richard Thomson. The seat, carved from the former Gordon and Banff and Buchan constituencies, covers Inverurie, Kintore, Huntly, Ellon, Oldmeldrum and the surrounding Aberdeenshire countryside.

She is not a backbencher. Kemi Badenoch appointed her an Opposition Assistant Whip in November 2024. She sits on the Scottish Affairs Committee, is an officer of the all party group on marine energy and vice chair of the group on the wood panel industry, and has led Westminster Hall debates on constituency issues. She has been described as a vocal supporter of the oil and gas sector and the tens of thousands of workers it employs through the transition to renewable energy. Her local campaigns include dualling the A96, upgrading the A90 and protecting community hospitals. She has rebelled once in 469 divisions, voting with fourteen other Conservatives to retain hereditary peers against the House of Lords Hereditary Peers Bill.

At 36, with an Imperial zoology degree, a Reading MSc and a rural surveying chartership, Cross has a scientific and land management education most MPs lack, even if it is not the energy expertise Westminster assumes. Whether the Scottish Affairs Committee, the marine energy work and her oil and gas advocacy produce visible results for Gordon and Buchan's farming and energy communities will decide whether the 878 vote margin survives.