Follow onshore oil production trends with our review of the latest official monthly data
Daily production: 14,508.61 barrels per day (bopd)
Weight: 57,013.1 tonnes
Volume: 69,198 m3
Volume of onshore as a proportion of UK total oil production: 1.78%
Headlines of the month: Largest daily production for eight months but big fall in production at Horse Hill, Surrey, coinciding with a production facility upgrade
The data in this post was compiled by the Oil & Gas Authority (OGA) from reports by oil companies. It is published three months in arrears. All the charts are based on the OGA data.
Another rise in daily production
- September 2021 saw the highest daily production rate since January 2021
- There was a small increase (0.76%) over the previous month and the second consecutive monthly rise
- But daily production was 1.33% down on September 2020 and 9.77% down on September 2019
Small falls in volume and weight
- Volume and weight fell 2.5% in September 2021, compared with the previous month
- This could be because September was one day shorter than August
- But this was the first fall in total production since June 2021
- Volume was back below 70,000m3 and weight remained below 60,000 tonnes for the eighth consecutive month
Another fall in contribution to UK total
- The contribution of onshore to total UK oil production fell for the third consecutive month
- At 1.78%, it was the lowest proportion of total UK oil production since March 2021
Top 20 sites
- Horse Hill in Surrey saw the largest fall in actual production and ranking
- Stockbridge in Hampshire, which fell to ninth place in August 2021, rose to 6th place in September 2021
- The top five ranking sites (Wytch Farm, Welton, Singleton, Humbly Grove and Horndean) remained unchanged for a month. The top three were unchanged for the sixth consecutive month
- Actual production rose at eight fields in the top 20 (Welton, Humbly Grove, Horndean, Stockbridge, Glentworth, Wareham, Gainsborough and Kimmeridge)
- As well as Horse Hill, actual production fell at 10 other fields in the top 20 (Wytch Farm, Singleton, Whisby, Beckingham, Scampton North, Cold Hanworth, Bletchingley, Corringham, Long Clawson and East Glentworth)
- Storrington remained unchanged
- Daily production at Horse Hill almost halved (45% down) in September, compared with August 2021, which itself was the lowest rate since December 2020
- The operator reported the completion of a two-week production facility upgrade in September 2021, during which production was shutdown
- Horse Hill fell from 11th place to 17 in the top 20 rankings,
- Water production at Horse Hill also almost halved in September 2021, compared with August (16.7bpd compared with 32.5bpd)
- IGas’s Welton site in Lincolnshire saw production rise nearly 3% in September 2021
- Welton’s contribution to UK onshore production also increased from 3.07% in August 2021 to 3.24% in September
- This was the site’s second consecutive monthly rise
- The UK’s biggest producing onshore field saw a fall in the weight of oil it produced in September 2021 compared with August (47,556 tonnes down from 49,094 in August)
- But daily production was up slightly on the previous month (12,181bpd, compared with 12,170bpd)
- The site’s contribution to UK onshore oil fell slightly from 83.9% in August 2021 to 83.4% in September
- Oil production at IGas’s Stockbridge site in Hampshire rose from 410 tonnes in August 2021 to 479 tonnes in September, an increase of nearly 17%
- The site’s contribution to UK onshore oil also rose, from 0.7% in August 2021 to 0.84%
- Monthly production at this IGas site in Lincolnshire fell more than 18% in September 2021, compared with the previous month.
- The weight of oil fell from 418 tonnes in August 2021 to 340 tonnes in September
- The daily rate also dropped from 99.42bpd in August 2021 to 83.66 in September
Perenco, the operator of Wytch Farm in Dorset, saw a small drop in September 2021 in its contribution to UK onshore oil production (84.79%, down from 85.11%. The company’s total volume of oil production fell nearly 3% from 60,397m3 in August 2021 to 58,671m3 in September.
Brtrnrg, the operator of the Whisby field in Lincolnshire, reported a production fall of more than 8%, from 577m3 in August 2021 to 527m3 in September 2021.
UKOG, the Horse Hill operator, Europa Oil & Gas plc and Onshore Oilfield Services Ltd, also recorded falls in production.
IGas production volume was up slightly (8,277m3 to 8,292m3). The company’s contribution to UK onshore production also rise from 11.66% to 11.98% in September 2021.
EP UK Investments, operator of Humbly Grove in Hampshire, saw a 25% increase in volumes (from 873m3 in August 2021 to 1097m3 in September 2021). There was also a small increase for Egdon Resources. Egdon’s figures do not include the Wressle field in Lincolnshire, which was still in test production in September 2021.
In September 2021, 12 onshore fields produced no oil. These included:
- Angus Energy sites in Brockham in Surrey and Lidsey in West Sussex
- Egdon Resources fields at Kirklington, Dukes Wood and Waddock Cross
- IGas fields at Avington, Egmanton, Nettleham, Scampton and South Leverton
- The Britnrg Limited site at Newton on Trent