| 
     1964 | 
    
      | 
    
    Continental Shelf Convention ratified by
    22 States and became International Law. |  
  
  
    | 
      |  
    
      | 
    
    Continental Shelf
    Act |  
  
  
    | 
      |  
    
      | 
    
    First licensing
    round award. |  
  
  
    | 
      |  
    
      | 
    
    First exploration well spudded
    26 December in CNS (Well 38/29-01
    PA Dry). |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1965 | 
    
       | 
    
    Second
    licensing round award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1967 | 
    
       | 
    
    UKCS gas production started (West
    Sole Field) SNS Block
    48/06. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1969 | 
    
       | 
    
    First oil found (Arbroath Field) in CNS,Well
    22/18-1 (PA OIL W). |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1970 | 
    
       | 
    
    Third
    licensing round award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1971 | 
    
       | 
    
    Fourth
    licensing round (Part I by sealed bids) award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1972 | 
    
       | 
    
    Fourth
    licensing round (Part II) award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1974 | 
    
       | 
    
     Gas found in IS (Morecambe
    Field), Well 110/02-1 (PA GAS W). |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1975 | 
    
       | 
    
     Oil Taxation Act came into force, introducing PRT. |  
  
  
    | 
      |  
    
       | 
    
     First oil production (Argyll Field) CNS
    Block 30/24. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1976 | 
    
       | 
    
     Petroleum & Submarine Pipelines Act came into force,
    setting up BNOC. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1977 | 
    
       | 
    
     Fifth
    licensing round (part) award. |  
  
  
    | 
      |  
    
       | 
    
     Oil found West of Shetlands (Clair Field), Well 206/08-1A
    (PA OIL W). |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1978 | 
    
       | 
    
     Fifth
    licensing round (part) award. |  
  
  
    | 
      |  
    
       | 
    
     Sixth
    licensing round (part) award. |  
  
  
    | 
      |  
    
       | 
    
     First installation abandoned
    and removed (West Sole Field). |  
  
  
    | 
      |  
    
      |  
     | 
  
  
    | 
     1979 |  
    
       | 
    
     Sixth
    licensing round (part) award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1980 | 
    
       | 
    
     Sixth
    licensing round (part) award. |  
  
  
    | 
      |  
    
       | 
    
     Seventh
    licensing round (part) award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1981 | 
    
       | 
    
     Seventh
    licensing round (part) award. |  
  
  
    | 
      |  
    
       | 
    
     UK oil production exceeded consumption. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1983 | 
    
       | 
    
     Eighth
    licensing round award. |  
  
  
    | 
      |  
    
       | 
    
     Oil and Gas (Enterprise) Act. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1985 | 
    
       | 
    
    Ninth licensing
    round award. |  
  
  
    | 
      |  
    
       | 
    
     Abolition of BNOC, replaced
    by Oil and Pipelines Agency. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1986 | 
    
       | 
    
     International oil prices fell from $30 per bbl
    to $10 per bbl in a few months. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1987 | 
    
       | 
    
     Tenth
    licensing round award. |  
  
  
    | 
      |  
    
       | 
    
     Petroleum Act came into force covering abandonment
    of offshore installations. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1988 | 
    
       | 
    
     Piper Alpha tragedy (July 6). |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1989 | 
    
       | 
    
     Eleventh
    licensing round award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1991 | 
    
       | 
    
     Twelfth
    licensing round award. |  
  
  
    | 
      |  
    
       | 
    
     Thirteenth
    licensing round award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1992 | 
    
       | 
    
     First out-of-round offshore awards. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1993 | 
    
       | 
    
     Fourteenth
    licensing round (Phases I, II & III) awards. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1994 | 
    
       | 
    
     Fifteenth
    licensing round award. |  
  
  
    | 
      |  
    
       | 
    
     First West of Shetlands oil field given Annex
    B (Foinaven). WoS Block 204/19. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1995 | 
    
       | 
    
     Sixteenth
    licensing round award. |  
  
  
    | 
      |  
    
      | 
    
     The Gas Act |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1997 | 
    
       | 
    
     Seventeenth
    licensing round award. |  
  
  
    | 
      |  
    
      |  
    
      |  
  
  
    | 
     1998 | 
    
       | 
    
     Eigtheenth
    licensing round award. |