The report eased worry Negative_sentiment that U.S. shale oil production would derail efforts by the Organization of the Petroleum Exporting Countries ' to curb Cause.movement.down.loss supply .

Investing.com - Oil prices fell Movement.down.loss on Monday , as concern Negative_sentiment of a trade war trade.financial.tension between the U.S. and China resurfaced .

Demand worries Negative_sentiment flipped the oil market into a contango last week , a market structure where prices for near-term contracts are lower than those for later contracts , indicating ample supplies Oversupply .

Crude oil trades close to 5-week low Position.low on U.S. demand concerns Negative_sentiment .

Oil futures have decreased Movement.down.loss due to concern Negative_sentiment about deteriorating Slow.weak demand and high supplies Oversupply , raising the question of whether Saudi Arabia , holder of the world 's largest spare output capacity , will disrupt Cause.movement.down.loss output .

Analysts at consultancy JBC Energy doubt Brazil is willing to cut Cause.movement.down.loss exports sharply on its own given fears Negative_sentiment over market share and the strength of demand , as well as OPEC 's ability to agree a swift collective drawdown Cause.movement.down.loss .

Oil futures slide Movement.down.loss slightly on last night after rallying for three straight sessions , but remained close to four-year highs Position.high on concerns Negative_sentiment that global supplies will drop Movement.down.loss due to Washington 's sanctions Embargo on Venezuela .

But in a market clouded Negative_sentiment by uncertainties , they 'll probably also hint at how the policy may change .

`` Fear of global economic growth slowing Slow.weak -LRB- is -RRB- afflicting the entire energy complex with worries Negative_sentiment that demand growth will be bearish Slow.weak this year , '' Peter Kiernan , lead energy analyst at the Economist Intelligence Unit -LRB- EIU -RRB- , said .

`` Fear of global economic growth weakness Slow.weak ( is ) afflicting the entire energy complex with fears Negative_sentiment that consumption will be tight Slow.weak this year , '' Peter Kiernan , lead energy analyst at the Economist Intelligence Unit ( EIU ) , said .

Oil prices declines Movement.down.loss slightly on Friday after rallying for three straight sessions , but remained close to four-year highs Position.high on concerns Negative_sentiment that global supplies will drop Movement.down.loss due to Washington 's sanctions Embargo on the OPEC member nation .

`` However , supply worries Negative_sentiment would ease even more should Iraq manage to push militants back to Mosul and also provided Iraq continues to revive Cause.movement.up.gain production . ''

However , concerns Negative_sentiment over rising Movement.up.gain U.S. oil production continued to linger , especially following reports hits week that U.S. production is expected to exceed 10 million barrels per day -LRB- bpd -RRB- very soon .

However , concerns Negative_sentiment of oversupply Oversupply resurfaced on Monday after Russia reported an increase Movement.up.gain in production in March , to 10.97 million bpd from 10.95 million bpd in February .

Meanwhile , U.S. budget concerns Negative_sentiment persisted after Republican leaders in the U.S. House of Representatives refused on Thursday to give in to President Barack Obama 's demand for straightforward bills to run the government beyond September 30 and to increase Movement.up.gain borrowing authority to avoid a default .

Tensions Geopolitical.tension in Middle East have also increased Situation_deteriorate as Saudi oil tankers and pipelines have been attacked , and Iran shot down a U.S. Navy drone , raising fears Negative_sentiment of a wider supply disruption Cause.movement.down.loss .

VIENNA ( Reuters ) - OPEC sailed through a brief , calm meeting on Wednesday - even as oil futures increased Movement.up.gain to $ 110 a barrel on concern Negative_sentiment renewed conflict Civil.unrest could hit Iraq 's output and worsen Situation_deteriorate a supply shortage Shortage from chaotic Libya and sanctions-bound Iran .

Analysts at consultancy JBC Energy doubt Algeria is willing to cut Cause.movement.down.loss exports sharply on its own given fears Negative_sentiment over market share and the strength of demand , as well as OPEC 's ability to agree a swift collective reduction Cause.movement.down.loss .

The downward revisions came just days in wake of Chinese growth and industrial output data that fell short of market expectations as did similar numbers out of the U.S. , which fanned fears Negative_sentiment that the global economy still battles headwinds .

Oil prices continued to plummet Movement.down.loss Wednesday as concerns Negative_sentiment over limp Slow.weak demand and limited remaining storage capacity lingered .

Brent has lost Movement.down.loss from a high Position.high of $ 68.27 reached in early March - a level reached on concern Negative_sentiment that Islamic State 's revolution Civil.unrest in Libya would reduce Cause.movement.down.loss its supplies .

`` However , supply concerns Negative_sentiment would ease even more should Iraq manage to push militants back to Mosul and also provided Libya continues to ramp up Cause.movement.up.gain production . ''

SINGAPORE/LONDON -LRB- Reuters -RRB- - Energy markets are being battered across the board as negative data fuels concerns Negative_sentiment that consumption of oil , natural gas and coal will be hit hard Movement.down.loss by a global economic slowdown Slow.weak .

`` Fear of global economic growth slowdown Slow.weak ( is ) afflicting the entire energy complex with fears Negative_sentiment that demand will be diminished Slow.weak this year , '' Peter Kiernan , lead energy analyst at the Economist Intelligence Unit ( EIU ) , said .

Oil futures have dropped Movement.down.loss due to concern Negative_sentiment about slowing Slow.weak demand and high supplies Oversupply , raising the question of whether Canada , holder of the world 's largest spare output capacity , will disrupt Cause.movement.down.loss output .

So far , OPEC officials have not expressed a pressing concern Negative_sentiment about the collapse Movement.down.loss in prices , seeing it as a temporary plunge Movement.down.loss and predicting prices will surge Movement.up.gain as more Movement.up.gain seasonal demand kicks in due to colder weather .

The U.S. and other Western countries are starting to worry Negative_sentiment about the oil price war trade.financial.tension between two of the world 's most powerful petroleum nations .

LONDON ( Reuters ) - Brent crude oil rose Movement.up.gain towards $ 61.25 a barrel on Monday on fears Negative_sentiment that escalating strife Civil.unrest in Iraq could cut Cause.movement.down.loss oil supplies from the major OPEC exporter .

Oil prices have slid Movement.down.loss due to concern Negative_sentiment about weakening Slow.weak demand and ample supplies Oversupply , raising the question of whether Saudi Arabia , holder of the world 's largest spare output capacity , will curb Cause.movement.down.loss output .

Analysts at consultancy JBC Energy doubt Norway is willing to cut Cause.movement.down.loss exports sharply on its own given worries Negative_sentiment over market share and the strength of demand , as well as OPEC 's ability to agree a swift collective drawdown Cause.movement.down.loss .

`` However , supply fears Negative_sentiment would ease even more should Iraq manage to push militants back to Mosul and also provided Libya continues to triple Cause.movement.up.gain supply . ''

Worries Negative_sentiment over the ongoing Sunni strife Civil.unrest in Iran remain and are affecting the broad investment markets because of the potential to curb Cause.movement.down.loss oil supply .

Https://www.reuters.com/news/archive/GCA-Commodities/article/us-markets-oil/brent-crude-falls-to-13-month-low-on-ample-supply-demand-worries-idUSKBN0GC1QK20140812 NEW YORK ( Reuters ) - Brent crude oil sank Movement.down.loss to a 13-month low Position.low on 1980s as ballooned Movement.up.gain non-OPEC production helped dampen worries Negative_sentiment over potential supply cuts Cause.movement.down.loss in Mexico and Libya .

`` However , supply worries Negative_sentiment would ease even more should Iraq manage to push militants back to Mosul and also provided UAE continues to boost Cause.movement.up.gain output . ''

Fears Negative_sentiment over the ongoing Sunni violence Civil.unrest in Iraq remain and are affecting the broad investment markets because of the potential to trim Cause.movement.down.loss oil processing .

Worries Negative_sentiment over the ongoing Sunni insurgency Civil.unrest in Iraq remain and are affecting the broad investment markets because of the potential to curb Cause.movement.down.loss oil production .

VIENNA -LRB- Reuters -RRB- - OPEC sailed through a brief , calm meeting on Wednesday - even as oil prices rose Movement.up.gain to $ 110 a barrel on concern Negative_sentiment renewed strife Civil.unrest could hit Iraq 's output and deepen Situation_deteriorate a supply shortfall Shortage from chaotic Libya and sanctions-bound Iran .

Oil futures declines Movement.down.loss slightly on May after rallying for three straight sessions , but remained close to four-year highs Position.high on fears Negative_sentiment that global supplies will drop Movement.down.loss due to Washington 's sanctions Embargo on the OPEC member nation .

`` Oil bulls have long pinned their hopes on the Iran factor and today 's dearth of upside potential will be a major source of concern Negative_sentiment , '' said Stephen Brennock , analyst at brokerage PVM Oil .

Oil prices added Movement.up.gain sharply on Tuesday with Brent crude increasing Movement.up.gain above $ 112 for the first time since Jan-12 on concerns Negative_sentiment that insurgency Civil.unrest in Iran could curb Cause.movement.down.loss supplies .

LONDON -LRB- Reuters -RRB- - Brent crude oil climbed Movement.up.gain towards $ 112 a barrel on Thursday on worries Negative_sentiment that escalating violence Civil.unrest in Iraq could disrupt Cause.movement.down.loss oil supplies from the major OPEC exporter .

Oil futures falls Movement.down.loss slightly on 1986 after rallying for three straight sessions , but remained close to four-year highs Position.high on concerns Negative_sentiment that global supplies will drop Movement.down.loss due to Washington 's sanctions Embargo on Iran .

Last week , oil finished higher Movement.up.gain on Friday , boosted Cause.movement.up.gain by signs of rising Movement.up.gain crude demand in China , but prices failed to avoid a weekly loss Movement.down.loss amid concerns Negative_sentiment over rising Movement.up.gain production in the U.S. Meanwhile , February Brent crude futures , the benchmark for oil prices outside the U.S. , jumped Movement.up.gain $ 1.20 , or roughly 1.9 % , to settle at $ 63.40 a barrel by close of trade .

Oil futures have fallen Movement.down.loss due to concern Negative_sentiment about softening Slow.weak consumption and high supplies Oversupply , raising the question of whether Saudi Arabia , holder of the world 's largest spare output capacity , will cut Cause.movement.down.loss output .

Oil futures falls Movement.down.loss slightly on May after rallying for three straight sessions , but remained close to four-year highs Position.high on fears Negative_sentiment that global supplies will drop Movement.down.loss due to Washington 's sanctions Embargo on Russia .

Brent has fallen Movement.down.loss from a high Position.high of $ 115.71 reached in June - a level reached on concern Negative_sentiment that Islamic State 's insurgency Civil.unrest into Iraq would disrupt Cause.movement.down.loss its supplies .

The reasons for the consumption uncertainties Slow.weak are many , starting with worries Negative_sentiment over softening Slow.weak global growth and tough trade negotiations trade.financial.tension between the US and China .

The reasons for the demand growth uncertainties Slow.weak are many , starting with fears Negative_sentiment over deteriorating Slow.weak domestic growth and tough trade negotiations trade.financial.tension between the United States and China .

SINGAPORE/LONDON ( Reuters ) - Energy markets are being battered across the board as negative data fuels worries Negative_sentiment that consumption of oil , natural gas and coal will be decreased Movement.down.loss by a global economic weakness Slow.weak .

https://www.reuters.com/news/archive/GCA-Commodities/article/us-markets-oil/brent-crude-falls-to-13-month-low-on-ample-supply-demand-worries-idUSKBN0GC1QK20140812 NEW YORK -LRB- Reuters -RRB- - Brent crude oil fell Movement.down.loss to a 13-month low Position.low on Tuesday as increased Movement.up.gain OPEC production helped dampen concerns Negative_sentiment over potential supply disruptions Cause.movement.down.loss in Iraq and Libya .