Ninian (Columba Terraces) (Ranger)
Columba Terraces to Ninian oil field B & D in production, E under development.
Block and licence number: 3/7a, P.203 (B Terrace)
3/8a, P.199 (D Terrace)
3/7a, P.203 (E Terrace)
Map reference: Plate 6
Licensees and company interest in block (%) at end of 1997:
B: Ranger Oil (UK) Ltd 6.00
Oryx UK Energy Company 60.80
Deminex UK Oil & Gas Ltd 20.00
Murphy Petroleum Ltd 13.20
D: Ranger Oil (UK) Ltd 55.00
AGIP (UK) Ltd 45.00
E: Ranger Oil (UK) Ltd 6.00
Oryx UK Energy Company 60.80
Deminex UK Oil & Gas Ltd 20.00
Murphy Petroleum Ltd 13.20
Date of discovery: B: November 1976
D: May 1980
E: May 1975
Production start: B: August 1996
D: September 1994
E: (Expected) May 1998
Operator’s estimate of:  
Recoverable reserves originally present (million tonnes): B: 5.46
D: 3.84
E: 2.71
First year of peak production: B: 2000
D: 1995
E: 1999
Peak production (million tonnes per year): B: 0.725
D: 1.12
E: 0.68
Water depth: 140m
Gravity: B: 35° API
D: 36° API
E: 38° API
Sulphur content: 5%
Transport system: Oil and NGLs piped to Sullom Voe.
Extension into other UK blocks: Block number, licence number and licensee/company interest in block (%) at end of 1997:

B:

3/8, P.199

Ranger Oil (UK) Ltd 55.00
AGIP (UK) Ltd 45.00

3/3, P.202

Oryx UK Energy Co 63.00
Ranger Oil (UK) Ltd 11.60
Sands North Sea Ltd 6.00
Murphy Petroleum Ltd 19.40

3/2, P.204

Oryx UK Energy Co 88.34
Ranger Oil (UK) Ltd 11.66

D: None

E:

3/7b, P.328

Oryx UK Energy Co 56.72
Ranger Oil (UK) Ltd 10.45
Murphy Petroleum Ltd 22.83
Deminex UK Oil & Gas Ltd 10.00

3/8a, P.199

Ranger Oil (UK) Ltd 55.00
AGIP (UK) Ltd 45.00
Remarks:  
Name Columba Terraces named after the Irish Saint Columba or Colum-cille who took voluntary exile from Ireland to Iona, a tiny island set off the West Coast of Scotland which he transformed into the rallying point for Christianity in Scotland in c500 AD.

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