Total hazardous and non-hazardous waste


  2011 2012 2013 2014 2015
Total hazardous and non-hazardous 1,414.20 126.51 296.48 661.50 306.04
Hazardous 411.43 8.45 30.29 172.47 33.17
Non-hazardous 1,002.77 118.06 266.19 489.03 272.87


Total regulated hazardous waste quantities by disposal method


  2011 2012 2013 2014 2015
Incineration or used as fuel 36.10 0.00 2.38 112.24 20.25
Recycling 0.00 0.09 21.36 52.78 8.24
Reuse 0.50 0.00 0.00 0.00 1.03
Landfill 0.00 0.00 0.02 0.96 3.50
On-site storage 0.00 0.00 0.00 1.17 0.14
Unspecified disposal 374.83 8.36 6.53 5.32 0.00


Total regulated non-hazardous waste quantities by disposal method


  2011 2012 2013 2014 2015
Composting 0.60 1.61 0.98 0.44 1.02
Incineration or used as fuel 498.40 5.37 62.49 30.66 7.56
Recycling 165.51 57.42 97.22 181.63 94.64
Reuse 0.00 0.00 0.00 67.52 23.35
Landfill 49.95 50.17 73.41 136.96 137.70
On-site storage 3.18 0.00 0.00 2.60 0.00
Unspecified 285.14 3.50 32.08 69.21 8.61


Hazardous and non-hazardous waste


  2011 2012 2013 2014 2015
Greenland hazardous 411.41 8.21 2.02 0.00 0.00
Greenland non-hazardous 907.86 8.77 45.14 0.40 0.00
Ireland hazardous NA NA NA 14.15 0.00
Ireland non-hazardous NA NA NA 12.10 0.00
Malta hazardous NA NA NA 0.00 0.00
Malta non-hazardous NA NA NA 3.64 0.00
Morocco hazardous NA 0.00 27.58 46.14 0.00
Morocco non-hazardous NA 1.27 106.32 79.24 1.00
Nepal hazardous 0.00 0.00 0.00 NA NA
Nepal non-hazardous 0.80 2.07 1.00 NA NA
Norway hazardous NA 0.00 0.05 0.00 0.15
Norway non-hazardous NA 1.12 1.14 1.38 2.94
Senegal hazardous NA NA 0.36 111.99 32.52
Senegal non-hazardous NA NA 3.35 254.57 150.81
Spain hazardous 0.00 0.00 0.00 0.01 NA
Spain non-hazardous 0.09 0.33 0.33 0.49 NA
United Kingdom hazardous 0.03 0.24 0.29 0.19 0.49
United Kingdom non-hazardous 94.02 104.50 108.90 137.21 118.12

Note: Data has been reported for countries where waste has been generated. Similarly, data has been reported for applicable waste disposal methods that have been used.

Hazardous waste: all waste that is defined as hazardous, toxic, dangerous, listed, priority, special, or some other similar term as defined by an appropriate country, regulatory agency or authority. We use the European Union definitions and waste codes.

Non-hazardous waste: industrial wastes resulting from company operations, including process and oil field wastes (solid and liquid) disposed of either on-site or off-site. Includes, trash and other office, commercial (e.g. retail) or packaging-related wastes. Excludes hazardous waste as defined above.

Disposal method: the method by which the waste is disposed. This is split into the following categories in line with GRI reporting requirements: reuse, recycling, composting, incineration, landfill, on-site storage, other. Waste data, including information on disposal method, is provided by our waste disposal contractors where applicable, or by contractors who are responsible for waste generated during short term operations. We use the European Union definitions and codings.

We generate waste during rig, marine vessel and shore-based operations, as well as from our offices in the UK and other locations.

Waste from field based operations: Waste generated during field-based (including offshore - except where offshore treatment is allowed such as garbage incineration under MARPOL) operations is transferred to shore based waste disposal facilities and waste transfer notes are used to record and track each transfer as part of our ‘Duty of Care’. Waste figures are submitted to Cairn at the end of each month by the vessels themselves (in the case of short-term operations such as seismic) or by the waste disposal contractor (in the case of longer term operations such as current drilling operations in Senegal). This data is then checked and entered into our database, split by hazardous/non-hazardous and by disposal method.

Waste figures are reported in tonnes. We ask our contractors to weigh waste wherever possible and report by mass (tonne, kg). Where this is not possible, tonnage is calculated by multiplying the volume of waste by a conversion factor. We provide contractors with a set of standard conversion factors from WRAP, a non-government organisation working with UK governments, the EU and other funders, to help deliver their policies on waste prevention and resource efficiency.

Office waste: Waste data is collected from our offices at the end of each year. This covers all types of waste including general office waste, controlled waste and recycling waste, e.g. paper and toner cartridges. Figures for Cairn’s head office in Edinburgh are received from the waste contractors that service the building, and are partly estimated. Figures for Cairn’s Stavanger office are obtained from the building managers. For both these offices some figures are calculated as a proportion of the overall building. For other offices waste figures are estimated using per person per month Edinburgh office figures.

Estimates and uncertainties

  • There is a degree of uncertainty in the volumes of waste measured and in the conversion factors used to convert volume to tonnes and these will arise from the method used.
  • Waste figures for offices are, for the most part, estimated as a proportion of the overall building or using per person per month Edinburgh office figures.

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