Categories
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The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
(first | last) View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)- Norway (57 members)
- Nostrum (2 members)
- Novatek (1 member)
- OKEA (1 member)
- OMV (6 members)
- ONGC (2 members)
- ORPC (2 members)
- Okea (1 member)
- Oman (8 members)
- One Dyas (1 member)
- Oneok (5 members)
- Orlen (2 members)
- Oxy (17 members)
- PAA (1 member)
- PBF (7 members)
- PDVSA (2 members)
- PKN Orlen (5 members)
- PNG (4 members)
- PTT (1 member)
- PTTEP (3 members)