Energy spectrum of cosmic rays measured using the Pierre Auger Observatory

We present the energy spectrum of cosmic rays measured at the Pierre Auger Observatory from 6 x 10(15) eV up to the most extreme energies where the accumulated exposure reaches about 80 000 km(2) sr yr. The wide energy range is covered with five different data sets: events detected by the surface detector (with separate reconstruction methods for zenith angles below and above 60 degrees), those collected by a denser array, a set of hybrid events simultaneously recorded by the surface and fluorescence detectors, and those events in which the signal is dominated by Cherenkov light registered by the high-elevation telescopes. In this contribution, we report updates of the analysis techniques and present the spectrum obtained by combining the five different measurements. Spectral features occurring in the wide energy range covered by the Observatory are discussed.