Heron	(Shell)
Offshore oil field under development.
Block and licence number:	Part 22/30a, P.012
Map reference:	Plate 9
Licensees and company interest in block (%) at end of 1997:
Shell UK Ltd	50.00
Esso Expl & Production UK Ltd	50.00
Date of discovery:	November 1988
Production start:	(Expected) Dec. 1998
Operator’s estimate of:
Recoverable reserves originally present (million tonnes):	11.50 (billion cubic metres): Gas 4.10
First year of peak production:	1999
Peak production (million tonnes per year):	2.56
Water depth:	90m
Gravity:	42º API
Sulphur content:	Nil
Transport system:	Oil piped via Marnock into the Forties System. Gas via Marnock into the CATS System to Teesside.
Extension into other UK blocks:	Block number, licence number and licensee/company interest in block (%) at end of 1997: 22/29, P.012 Companies as above.
Remarks:	The field is a subsea satellite to the Marnock platform and is one of the seven fields making up the ETAP project.
Name Heron	Shell’s offshore oil fields are named after sea birds.

Title | Table of Contents
Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Chapter 5 | Chapter 6 | Chapter 7 | Chapter 8 | Chapter 9
Appendix 1 | Appendix 2 | Appendix 3 | Appendix 4 | Appendix 5 | Appendix 6 | Appendix 7 | Appendix 8
Appendix 9 | Appendix 10 | Appendix 11 | Appendix 12 | Appendix 13 | Appendix 14 | Appendix 15 | Appendix 16 | Appendix 17
Plate 1 | Plate 2W | Plate 2E | Plate 3W | Plate 3E | Plate 4W | Plate 4E | Plate 5W | Plate 5E | Plate 6 | Plate 7
Plate 8W | Plate 8E | Plate 9W | Plate 9E | Plate 10W | Plate 10E | Plate 11 | Plate 12