Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 1 Months Ended | |||
---|---|---|---|---|---|
Mar. 31, 2014
PNG Merger
|
Apr. 30, 2012
Pemex Exploracion y Produccion (PEP)
case
|
Sep. 30, 2013
Consolidated Delaware Action
PNG Merger
case
|
Sep. 30, 2013
Consolidated Texas Action
PNG Merger
case
|
Oct. 31, 2013
Consolidated Federal Action
PNG Merger
case
|
|
Loss Contingencies | |||||
Total number of cases filed | 2 | ||||
Number of cases filed during the period | 2 | 2 | 4 | ||
Settlement payments | $ 0 |