UK Operations and Licences
Operations
Tullow first entered the UK offshore exploration and production arena in 2001, when it acquired a significant number of Southern North Sea (SNS) gas assets from BP. The acquisition comprised assets in two main areas, CMS (the Caister Murdoch System) and the Thames/Hewett Area. The portfolio has since been expanded through a number of transactions and licence awards. The SNS gas assets include significant equity in the associated infrastructure, the export pipelines, and one of the onshore receiving and processing terminals at Bacton. In the CMS area, a five-field development known as CMS III was completed during 2004, with all the fields tied back to the CMS production infrastructure. Further exploration success in the area led to the discovery and development of the Kelvin field, which came on stream in November 2007.
In March 2005 Tullow completed a deal with Shell and Esso which gave the Company operatorship and significant holdings in the CMS area Schooner and Ketch Fields as well as interests in three discoveries in adjacent acreage. Since acquiring the Schooner and Ketch assets Tullow has increased production through development drilling and improved performance via facilities maintenance and well optimisation programmes. Production from the Thames area Horne and Wren fields, Tullow's first operated development offshore UK, commenced in June 2005. This was later followed by the sub-sea Thurne development also tied into Thames with first gas in September 2007. The Wissey Field is currently under development targeting first gas in July 2008 as a tie-back to Horne/Wren.
Tullow will continue to seek opportunities to add value in the prolific basins of the North Sea, with particular focus on the SNS. Tullow is also actively considering future alternate uses for its extensive infrastructure position in the area and these include carbon capture and storage from fossil fuelled power stations linked to the depleted major Hewett reservoirs once gas production ceases.
Tullow operates in excess of 60% of its UK gas production.
Maps and Data
Licences
North Sea - Caister Murdoch (CMS) Area
| Licence | Blocks | Fields | Tullow Interest |
Operator | Other Partners |
|---|---|---|---|---|---|
| P449 | 43/25a | 30.00% |
GDF | RWE | |
| P450 | 44/21a | Boulton B&F | 9.50% |
ConocoPhillips | GDF |
| P451 | 44/22a 44/22b |
Murdoch Boulton H, Watt |
34.00% |
ConocoPhillips | GDF |
| P452 | 44/23a (part) |
Murdoch (K) | 6.91% |
ConocoPhillips | GDF |
| P453 | 44/28b | Ketch | 100.00% |
Tullow | |
| P516 | 44/26a | Schooner | 97.05% |
Tullow | GDF |
| P517 | 44/27a | 31.67% |
GDF | ||
| P847 | 49/2b | 15.00% |
GDF | RWE | |
| P1006 | 44/17b | Munro | 20.00% |
GDF | ConocoPhillips |
| P1013 | 49/2a | 25.00% |
GDF | RWE | |
| P1055 | 44/11a, 44/12a |
35.00% |
GDF | E.ON, Endeavour |
|
| P1057 | 44/16a, 44/16b, 44/16c |
35.00% |
GDF | E.ON, ConocoPhillips |
|
| P1058 | 44/18b, 44/23b |
Kelvin |
22.50%
|
ConocoPhillips | GDF |
| P1139 | 44/19b | 22.50%
|
ConocoPhillips | GDF | |
| P1245 | 48/3a, 48/4 | 25.00%
|
Tullow | Ithaca, Venture, Dana | |
| P1339 | 43/23b | 50.00% |
Endeavour | ||
| P1343 | 43/30b 48/5a 49/1b |
33.33% |
GDF | Endeavour | |
| P1345 | 44/28a 49/3a |
100.00% |
Tullow | ||
| P1437 | 44/13a | 25.00%
|
GDF | E.ON, Endeavour |
|
| P1439 | 44/21e | 100.00% |
Tullow | ||
| CMS III Unit | 44/17a (part) 44/17c (part) 44/21a (part) 44/22a (part) 44/22b (part) 44/22c (part) 44/23a (part) |
Boulton H, Hawksley, McAdam, Murdoch K, Watt |
14.10% |
ConocoPhillips | GDF |
| Murdoch Unit | 44/17b 44/17a |
Munro | 15.00% |
ConocoPhillips | GDF |
| Schooner Unit | 44/26a 43/30a |
Schooner | 90.35%
|
Tullow | E.ON, Faroe Petr., GDF |
North Sea Thames - Hewett Area
| Licence | Blocks | Fields | Tullow Interest |
Operator | Other Partners |
|---|---|---|---|---|---|
| P007 | 49/24F1(part) (Excluding Gawain) 49/24F1(part) |
Gawain |
100.00% 50.00% |
Tullow Perenco |
|
| P028 | 48/30a, 52/5a | Hewett | 53.24% |
Tullow | Eni |
| P037 | 48/28a, 48/29a 49/28a, 49/28b |
Hewett Thames, Yare, Bure, Deben, Wensum, Thurne* |
49.84% 66.67% |
Perenco Perenco |
Eni Centrica |
| P039 | 53/4a 53/4d |
Welland** Wissey |
75.00% 62.50% |
Tullow Tullow |
First Oil First Oil, Faroe Petr. |
| P060 | 50/26a | Orwell | 100.00% |
Tullow | |
| P105 | 49/29a(part) | Gawain | 50.00% |
Perenco | |
| P112 | 52/4a | Hewett | 52.39%
|
Tullow | Eni, Perenco |
| P133 | 53/3a 53/3a P4 |
45.00% 35.00% |
BG BG |
Dyon Dyon |
|
| P786 | 53/3c | Horne | 50.00% |
Tullow | Centrica |
| P852 | 53/4b | Horne & Wren | 50.00% |
Tullow | Centrica |
| P1445 | 48/28c 52/3a 52/4b 52/5b |
100.00% |
Tullow | ||
| Gawain Unit | 49/24F1 (part) 49/29a (part) |
Gawain | 50.00% |
Perenco | |
| Hewett Unit | 48/28a, 48/29a, 48/30a (part) 52/4a, 52/5a |
Hewett Deborah, Della, Delilah |
51.69%
|
Tullow | Eni, Perenco |
| Welland Unit | 49/29b (part) 53/4a |
Welland** | 33.73% |
ExxonMobil | First Oil |
Notes :
* - Tullow has an 86.96% interest in Thurne.
* * - Production from the Welland field ceased in 2002
North Sea - Central North Sea
| Licence | Blocks | Fields | Tullow Interest |
Operator | Other Partners |
|---|---|---|---|---|---|
| P477 | 16/13c | 6.25%
|
ConocoPhillips | Maersk, BG, Endeavour, Global Santa Fe | |
| P1045 | 16/18b | 6.25%
|
ConocoPhillips | Maersk, BG, Endeavour, Global Santa Fe |
 |
 |
