A few days ago, I heard the words "volcano" and "venezuela".
When I looked up these words, it showed me that Venezuela has a lot of mud volcanoes in the eastern region.
Mud volcanoes are caused by the effects of oil/gas drilling.

It also showed that the worst mud volcano is situated in Indonesia... Apparently the drilling there has caused an environmental disaster.

See for yourself (news May 27 2008):

INDONESIA - Two years after it oozed into life, Indonesia's "mud volcano" is still spewing toxic sludge across the Javanese countryside at the rate of 60 Olympic swimming pools a day. And the more homes and farms that disappear beneath its stinking grey goo, the louder the calls for justice from hundreds of displaced families who are awaiting compensation. "There is always a fear that even where we are staying we will be flooded with mud. Recently the dyke at Renokenongo subsided two metres, new gas leaks are everywhere. When the wind blows westward we can smell the strong odour from here. It seems like there's no end." While the authorities argue over who, if anyone, is to blame, the mud marches on, burying villages and making people ill with foul plumes of highly concentrated methane gas. Worried locals have said it gets so bad they are afraid to cook in case the flammable cloud explodes. "The latest data from March this year shows around 640 hectares (1580 acres) of land is flooded by the mud."
The Indonesian "mud volcano" is collapsing under its own weight, worsening the environmental disaster. Sudden collapses of up to three metres (9.8 feet) have been recorded at the centre of the volcano in East Java. "Such sudden collapses could be the beginning of a caldera - a large basin-shaped volcanic depression." The caldera could be as much as 146 metres deep. "(Scientists) propose the subsidence is due to the weight of mud and collapse of rock strata due to the excavation of mud from beneath the surface." The mud volcano, known as "Lusi", has already been an environmental and economic disaster for local people, and things will get worse as the mud continues to flow and the centre collapses. "Sidoarjo is a populated region and is collapsing as a result of the birth and growth of Lusi. This could continue to have a significant environmental impact on the surrounding area for years to come." (photo and map)

BURMA (MYANMAR) - A mud volcano erupted on an island in Manaung Township in Arakan twice on the night of Sunday, May 25, but there are no reports on any damaged caused by the eruption. The volcano, situated on Nantha Kyunt Island along the Arakan Coast, erupted first at 12:30 am and a second time at 4 am. Molten lava spewed from the mouth of the volcano, reaching estimated heights of 120 feet into the sky. After the lava erupted, the area surrounding the volcano was inundated with mud that came from the volcano. In Arakan State, there are a few mud volcanoes that occasionally erupt. On 5 January, 2008, Nagar Gri (Dragon) Volcano on Rambree Island also erupted and flooded nearby areas with lava.(photo of the January eruption)