1.   Ukraine threatened to retaliate by closing the pipelines on its territory transporting Turkmen gas to third countries.

2.   -- TransCanada Pipelines Ltd. after it said its gas pipeline in Saskatchewan ruptured, causing an explosion and closing the pipeline.

3.   McGreevey says he did not lobby against closing that pipeline, in Toms River.

4.   The pipeline has been closed because of the fighting.

5.   In the past, Russia closed its pipelines to extract political concessions from other former Soviet republics and equity in energy projects they negotiated with others.

6.   Stoyanov also said Bulgaria already had closed oil pipelines to neighboring Yugoslavia, anticipating a European Union decision to choke off fuel supplies to Yugoslav President Slobodan Milosevic.

7.   The pipeline was closed under the embargo imposed on Baghdad after its invasion of Kuwait more than four years ago.

8.   The pipeline was also closed when relations were severed.

9.   The pipeline was closed six years ago after Iraq invaded Kuwait.