三桶油

Sān Tǒng Yóu
  1. (colloquial) CNPC (中石油), Sinopec (中石化) and CNOOC (中海油).
  2. CNPC (中石油), Sinopec (中石化) and CNOOC (中海油).

Wiktionary

Entry Composition

=1 三 Sān surname San
=1 三 sān
  1. three
  2. 3
2 桶 tǒng
  1. bucket
  2. (trash) can
  3. barrel (of oil etc)

classifiers: 個, 隻
=3 油 yóu
  1. oil
  2. fat
  3. grease
  4. petroleum
  5. to apply tung oil, paint or varnish
  6. oily
  7. greasy
  8. glib
  9. cunning
=3 油 yòu
  1. (obsolete on its own in Standard Chinese) alternative form of 釉 (yòu, “to glaze”)
  2. alternative form of 釉 (yòu, “to glaze”)
  3. used in 浩油