Photo: Karen Warren / Associated Press Image 1 of / 61 Caption Close

Image 2 of 61 Workers gather the oil spilled onto the sands of the Texas City dike at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Monday, March 24, 2014, in Texas City. Workers gather the oil spilled onto the sands of the Texas City dike at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Monday, March 24, 2014, in Texas City. Photo: Karen Warren / Houston Chronicle

Image 3 of 61 Workers gather the oil spilled onto the sands of the Texas City dike at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Monday, March 24, 2014, in Texas City. Thousands of gallons of tar-like oil spilled into the major U.S. shipping channel after a barge ran into a ship Saturday. less Workers gather the oil spilled onto the sands of the Texas City dike at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Monday, March 24, 2014, in Texas City. Thousands of gallons ... more Photo: Karen Warren / Associated Press

Image 4 of 61 Crews scoop up heavy fuel oil that washed up on East Beach in Galveston, Texas on Monday March 24, 2014 as they begin cleaning up after a weekend oil spill in Galveston Bay. More than 160,000 gallons of heavy fuel oil spilled into the bay after a barge collided with a ship near the Texas City Dike. less Crews scoop up heavy fuel oil that washed up on East Beach in Galveston, Texas on Monday March 24, 2014 as they begin cleaning up after a weekend oil spill in Galveston Bay. More than 160,000 gallons of heavy ... more Photo: Jennifer Reynolds / Associated Press

Image 5 of 61 Heavy fuel oil soils the protective suits worn by clean up workers during a clean up effort, Monday, March 24 at the Texas City Dike where a barge struck a cargo ship in Texas City, Texas. Heavy fuel oil soils the protective suits worn by clean up workers during a clean up effort, Monday, March 24 at the Texas City Dike where a barge struck a cargo ship in Texas City, Texas. Photo: Kirk Sides / Associated Press

Image 6 of 61 Chad Smith, with Garner Environmental Services, moves an oil absorbent skirt back into the surf ,Monday March 24, 2014, on East Beach in Galveston, Texas. Crews were deployed Monday morning to begin cleaning up the heavy fuel oil spilled from a barge over the weekend. less Chad Smith, with Garner Environmental Services, moves an oil absorbent skirt back into the surf ,Monday March 24, 2014, on East Beach in Galveston, Texas. Crews were deployed Monday morning to begin cleaning ... more Photo: Jennifer Reynolds / Associated Press

Image 7 of 61 Gerald Joubert bags oil soaked sand on Monday March 24, 2014, on the Texas City Dike as crews begin cleaning up after an oil spill over the weekend. More than 160,000 gallons of heavy fuel oil spilled into the bay after a barge collided with a ship Saturday near the dike. less Gerald Joubert bags oil soaked sand on Monday March 24, 2014, on the Texas City Dike as crews begin cleaning up after an oil spill over the weekend. More than 160,000 gallons of heavy fuel oil spilled into the ... more Photo: Jennifer Reynolds / Associated Press

Image 8 of 61 Renny Keal tosses a bag of oil soaked sand into a pickup on Monday March 24, 2014, as crews begin cleaning up oil from the Texas City Dike. More than 160,000 gallons of heavy fuel oil spilled into the bay after a barge collided with a ship Saturday near the dike. less Renny Keal tosses a bag of oil soaked sand into a pickup on Monday March 24, 2014, as crews begin cleaning up oil from the Texas City Dike. More than 160,000 gallons of heavy fuel oil spilled into the bay ... more Photo: Jennifer Reynolds / Associated Press

Image 9 of 61 Workers stand with oil covered booms that they gathered soaked up oil spilled at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Monday, March 24, 2014, in Texas City. Thousands of gallons of tar-like oil spilled into the major U.S. shipping channel after a barge ran into a ship Saturday. less Workers stand with oil covered booms that they gathered soaked up oil spilled at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Monday, March 24, 2014, in Texas City. Thousands ... more Photo: Karen Warren / Associated Press

Image 10 of 61 A crew makes it's way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike Monday, March 24, 2014, in Texas City. A crew makes it's way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike Monday, March 24, 2014, in Texas City. Photo: Karen Warren / Houston Chronicle

Image 11 of 61 A crew makes it's way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike Monday, March 24, 2014, in Texas City. A crew makes it's way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike Monday, March 24, 2014, in Texas City. Photo: Karen Warren / Houston Chronicle

Image 12 of 61 In this March 24, 2014 photo, work crews drop booms into the bay in efforts to prevent more oil from reaching the shores in Galveston, Texas. The oil washed ashore after a barge carrying heavy oil collided with a ship Saturday near the Texas City. Officials said Monday night that changing currents, winds and weather were pushing the oil not only further into the Gulf, but also southwest along Galveston Island, resulting in expanded oil recovery efforts. less In this March 24, 2014 photo, work crews drop booms into the bay in efforts to prevent more oil from reaching the shores in Galveston, Texas. The oil washed ashore after a barge carrying heavy oil collided ... more Photo: Mayra Beltran / Associated Press

Image 13 of 61 A crew makes its way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike, Monday, March 24, 2014, in Texas City. Thousands of gallons of tar-like oil spilled into the major U.S. shipping channel after a barge ran into a ship Saturday. less A crew makes its way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike, Monday, March 24, 2014, in Texas City. Thousands ... more Photo: Karen Warren / Associated Press

Image 14 of 61 A crew makes its way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike, Monday, March 24, 2014, in Texas City. Thousands of gallons of tar-like oil spilled into the major U.S. shipping channel after a barge ran into a ship Saturday. less A crew makes its way to the shore from the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike, Monday, March 24, 2014, in Texas City. Thousands ... more Photo: Karen Warren / Associated Press

Image 15 of 61 Work continues Monday March 24, 2014, to secure and decontaminate a disabled barge that collided with a ship Saturday afternoon near the Texas City Dike spilling more than 160,000 gallons of heavy fuel oil into Galveston Bay. less Work continues Monday March 24, 2014, to secure and decontaminate a disabled barge that collided with a ship Saturday afternoon near the Texas City Dike spilling more than 160,000 gallons of heavy fuel oil ... more Photo: Jennifer Reynolds / Associated Press

Image 16 of 61 The wrecked barge that leaked oil into the Houston Ship Channel, Saturday, just off of the Texas City dike, sppears Monday, March 24, 2014, in Texas City. Thousands of gallons of tar-like oil spilled into the major U.S. shipping channel after a barge ran into a ship Saturday. less The wrecked barge that leaked oil into the Houston Ship Channel, Saturday, just off of the Texas City dike, sppears Monday, March 24, 2014, in Texas City. Thousands of gallons of tar-like oil spilled into the ... more Photo: Karen Warren / Associated Press

Image 17 of 61 In this March 24, 2014 photo, Houston Audubon Society members Loren Gallo, left, Pete Deichmann, center, and Winnie Burkett watch for oiled birds at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. The oil washed ashore after a barge carrying heavy oil collided with a ship Saturday near the Texas City. Officials said Monday night that changing currents, winds and weather were pushing the oil not only further into the Gulf, but also southwest along Galveston Island, resulting in expanded oil recovery efforts. less In this March 24, 2014 photo, Houston Audubon Society members Loren Gallo, left, Pete Deichmann, center, and Winnie Burkett watch for oiled birds at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. The ... more Photo: Melissa Phillip / Associated Press

Image 18 of 61 In this March 24, 2014 photo, Houston Audubon Society members Mary Anne Weber, left, and Winnie Burkett watch for oiled birds at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. The oil washed ashore after a barge carrying heavy oil collided with a ship Saturday near the Texas City. Officials said Monday night that changing currents, winds and weather were pushing the oil not only further into the Gulf, but also southwest along Galveston Island, resulting in expanded oil recovery efforts. less In this March 24, 2014 photo, Houston Audubon Society members Mary Anne Weber, left, and Winnie Burkett watch for oiled birds at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. The oil washed ashore ... more Photo: Melissa Phillip / Associated Press

Image 19 of 61 In this March 24, 2014 photo, an oiled gull preens its feather at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. Officials said Monday night that changing currents, winds and weather were pushing the oil not only further into the Gulf, but also southwest along Galveston Island, resulting in expanded oil recovery efforts. Traffic backed up on both sides of the Houston Ship Channel that was shut down for a third day Tuesday, after a barge spilled as much as 170,000 gallons of oil into environmentally sensitive waters along the Gulf of Mexico. less In this March 24, 2014 photo, an oiled gull preens its feather at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. Officials said Monday night that changing currents, winds and weather were pushing the ... more Photo: Melissa Phillip / Associated Press

Image 20 of 61 A black bird flies into the air off of a post at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike Monday, March 24, 2014, in Texas City. A black bird flies into the air off of a post at the site of the wrecked barge that leaked fuel into the Houston Ship Channel, Saturday, just off of the Texas City dike Monday, March 24, 2014, in Texas City. Photo: Karen Warren / Houston Chronicle

Image 21 of 61 In this March 24, 2014 photo, an oiled gull sits on a post at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. Traffic backed up on both sides of the Houston Ship Channel that was shut down for a third day Tuesday, after a barge spilled as much as 170,000 gallons of oil into environmentally sensitive waters along the Gulf of Mexico. less In this March 24, 2014 photo, an oiled gull sits on a post at the Bolivar Flats Shorebird Sanctuary in Bolivar, Texas. Traffic backed up on both sides of the Houston Ship Channel that was shut down for a third ... more Photo: Melissa Phillip / Associated Press

Image 22 of 61 A seagull with oil smeared on its belly flies over Boddeker Road in Galveston, Texas on Sunday March 23, 2014, where heavy crude oil leaking from a disabled barge near the Texas City Dike is washing ashore on the East End of the island. The barge, carrying about 924,000 gallons of heavy crude oil, collided with a ship Saturday. less A seagull with oil smeared on its belly flies over Boddeker Road in Galveston, Texas on Sunday March 23, 2014, where heavy crude oil leaking from a disabled barge near the Texas City Dike is washing ashore on ... more Photo: Jennifer Reynolds / Associated Press

Image 23 of 61 Coast Guard Captain Brian Penoyer, the Federal on-scene coordinator of the oil spill speaks during press conference at the Doyle Convention Center as he updated the media about the wrecked barge that leaked fuel into the Houston Ship Channel, Monday, March 24, 2014, in Texas City. less Coast Guard Captain Brian Penoyer, the Federal on-scene coordinator of the oil spill speaks during press conference at the Doyle Convention Center as he updated the media about the wrecked barge that leaked ... more Photo: Karen Warren / Houston Chronicle

Image 24 of 61 Cleanup vessels are surrounded by a sheen on the water in the Port of Galveston on Sunday, March 23, 2014, in Galveston, Texas. Dozens of ships are in evolved in clean-up efforts to remove oil that spilled into Galveston Bay after a ship and barge collided near the Texas City dike on Saturday afternoon. less Cleanup vessels are surrounded by a sheen on the water in the Port of Galveston on Sunday, March 23, 2014, in Galveston, Texas. Dozens of ships are in evolved in clean-up efforts to remove oil that spilled ... more Photo: Smiley N. Pool / Houston Chronicle

Image 25 of 61 Protective boom surrounds tall ship Elissa at the Port of Galveston on Sunday, March 23, 2014, in Galveston, Texas. Dozens of ships are in evolved in clean-up efforts to remove oil that spilled into Galveston Bay after a ship and barge collided near the Texas City dike on Saturday afternoon. less Protective boom surrounds tall ship Elissa at the Port of Galveston on Sunday, March 23, 2014, in Galveston, Texas. Dozens of ships are in evolved in clean-up efforts to remove oil that spilled into Galveston ... more Photo: Smiley N. Pool / Houston Chronicle

Image 26 of 61 Oil containment booms are spread out near the idle Galveston-Bolivar Ferry terminal on Sunday, March 23, 2014, in Galveston. Dozens of ships are in evolved in clean-up efforts to remove up to 168,000 gallons of oil that make have spilled into Galveston Bay after a ship and barge collided near the Texas City dike on Saturday afternoon. less Oil containment booms are spread out near the idle Galveston-Bolivar Ferry terminal on Sunday, March 23, 2014, in Galveston. Dozens of ships are in evolved in clean-up efforts to remove up to 168,000 gallons ... more Photo: Smiley N. Pool / Houston Chronicle

Image 27 of 61 An oil containment boom is shown washed to shore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014 in Galveston. An oil containment boom is shown washed to shore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014 in Galveston. Photo: Melissa Phillip / Associated Press

Image 28 of 61 A dead oil covered bird is shown on the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. A dead oil covered bird is shown on the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Photo: Melissa Phillip / Associated Press

Image 29 of 61 Oil is shown washed ashore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Oil is shown washed ashore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Photo: Melissa Phillip / Associated Press

Image 30 of 61 Madison Dwyer, from left, Morgan Dwyer, Seth Thomason and John A. Lowe walk along East Beach in Galveston, Texas on Sunday March 23, 2014, where heavy fuel oil leaking from a disabled barge is washing ashore. The foursome were waiting to sail out of Galveston aboard Royal Caribbean's Navigator of the Seas, which was delayed getting into port due to the spill. less Madison Dwyer, from left, Morgan Dwyer, Seth Thomason and John A. Lowe walk along East Beach in Galveston, Texas on Sunday March 23, 2014, where heavy fuel oil leaking from a disabled barge is washing ashore. ... more Photo: Jennifer Reynolds / Associated Press

Image 31 of 61 An oil containment boom is shown washed to shore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. An oil containment boom is shown washed to shore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Photo: Melissa Phillip / Associated Press

Image 32 of 61 Crews place protective boom along the seashore near Port Bolivar on Sunday, March 23, 2014, in Port Bolivar, Texas. Dozens of ships are in evolved in clean-up efforts to remove up to 168,000 gallons of oil that make have spilled into Galveston Bay after a ship and barge collided near the Texas City dike on Saturday afternoon. less Crews place protective boom along the seashore near Port Bolivar on Sunday, March 23, 2014, in Port Bolivar, Texas. Dozens of ships are in evolved in clean-up efforts to remove up to 168,000 gallons of oil ... more Photo: Smiley N. Pool / Associated Press

Image 33 of 61 People photograph oil washing ashore Sunday March 23, 2014, along Boddeker Road in Galveston, Texas. More than 160,000 gallons of heavy fuel oil is leaking from a disabled barge, that collided with a ship Saturday near the Texas City Dike. less People photograph oil washing ashore Sunday March 23, 2014, along Boddeker Road in Galveston, Texas. More than 160,000 gallons of heavy fuel oil is leaking from a disabled barge, that collided with a ship ... more Photo: Jennifer Reynolds / Associated Press

Image 34 of 61 Heavy crude oil washes over booms and onto the beach along Boddeker Road in Galveston, Texas on Sunday March 23, 2014. More than 160,000 gallons of heavy fuel oil is leaking from a disabled barge, that collided with a ship Saturday near the Texas City Dike. less Heavy crude oil washes over booms and onto the beach along Boddeker Road in Galveston, Texas on Sunday March 23, 2014. More than 160,000 gallons of heavy fuel oil is leaking from a disabled barge, that ... more Photo: Jennifer Reynolds / Associated Press

Image 35 of 61 An oil containment boom is shown washed to shore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. An oil containment boom is shown washed to shore on the beach area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Photo: Melissa Phillip / Associated Press

Image 36 of 61 Emergency response crews work along side a barge leaking heavy crude oil Sunday March 23, 2014, near the Texas City Dike. The barge, carrying 924,000 gallons of heavy crude oil, collided with a ship Saturday afternoon spilling more than 160,000 gallons of oil into the bay. less Emergency response crews work along side a barge leaking heavy crude oil Sunday March 23, 2014, near the Texas City Dike. The barge, carrying 924,000 gallons of heavy crude oil, collided with a ship Saturday ... more Photo: Jennifer Reynolds / Associated Press

Image 37 of 61 Workers try to move oil containment boom from the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Workers try to move oil containment boom from the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Photo: Melissa Phillip / Associated Press

Image 38 of 61 Workers try to move oil containment boom from the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Workers try to move oil containment boom from the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Photo: Melissa Phillip / Associated Press

Image 39 of 61 United States Coast Guardsmen inspect oil washing ashore along Boddeker Road in Galveston, Texas on Sunday March 23, 2014. More than 160,000 gallons of heavy fuel oil is leaking from a disabled barge, that collided with a ship Saturday near the Texas City Dike. less United States Coast Guardsmen inspect oil washing ashore along Boddeker Road in Galveston, Texas on Sunday March 23, 2014. More than 160,000 gallons of heavy fuel oil is leaking from a disabled barge, that ... more Photo: Jennifer Reynolds / Associated Press

Image 40 of 61 A dead oil covered bird is shown on the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014 in Galveston. A dead oil covered bird is shown on the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014 in Galveston. Photo: Melissa Phillip / Associated Press

Image 41 of 61 Vessels work with skimmers and oil containment booms in Galveston Harbor on Sunday, March 23, 2014, in Galveston. Dozens of ships are in evolved in clean-up efforts to remove up to 168,000 gallons of oil that make have spilled into Galveston Bay after a ship and barge collided near the Texas City dike on Saturday afternoon. less Vessels work with skimmers and oil containment booms in Galveston Harbor on Sunday, March 23, 2014, in Galveston. Dozens of ships are in evolved in clean-up efforts to remove up to 168,000 gallons of oil that ... more Photo: Smiley N. Pool / Associated Press

Image 42 of 61 Workers try to move oil containment boom from the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Workers try to move oil containment boom from the shore area along Boddeker Rd. on the Eastern end of Galveston near the ship channel Sunday, March 23, 2014, in Galveston. Photo: Melissa Phillip / Associated Press

Image 43 of 61 Emergency crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike on Sunday, March 23, 2014, in Texas City. Dozens of ships are in evolved in clean-up efforts to remove up to 168,000 gallons of oil that make have spilled into Galveston Bay after a ship and barge collided near the Texas City dike on Saturday afternoon. less Emergency crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike on Sunday, March 23, 2014, in Texas City. Dozens of ships are in evolved in clean-up efforts to remove ... more Photo: Smiley N. Pool / Associated Press

Image 44 of 61 A sheen is seen on the water near East Beach and the Galveston Jetties on Sunday, March 23, 2014, in Galveston, Texas. Dozens of ships are in evolved in clean-up efforts to remove oil that spilled into Galveston Bay after a ship and barge collided near the Texas City dike on Saturday afternoon. less A sheen is seen on the water near East Beach and the Galveston Jetties on Sunday, March 23, 2014, in Galveston, Texas. Dozens of ships are in evolved in clean-up efforts to remove oil that spilled into ... more Photo: Smiley N. Pool / Associated Press

Image 45 of 61 The body of a duck covered in heavy crude oil lays on the beach along Boddeker Road in Galveston, Texas on Sunday March 23, 2014. The oil is leaking from a disabled barge, that collided with a ship Saturday near the Texas City Dike. less The body of a duck covered in heavy crude oil lays on the beach along Boddeker Road in Galveston, Texas on Sunday March 23, 2014. The oil is leaking from a disabled barge, that collided with a ship Saturday ... more Photo: Jennifer Reynolds / Associated Press

Image 46 of 61 A seagull lands in heavy crude oil washing up on East Beach in Galveston, Texas on Sunday March 23, 2014. More than 160,000 gallons of the oil have leaked into the bay after a barge, carrying about 924,000 gallons of heavy crude oil, collided with a ship Saturday near the Texas City Dike. less A seagull lands in heavy crude oil washing up on East Beach in Galveston, Texas on Sunday March 23, 2014. More than 160,000 gallons of the oil have leaked into the bay after a barge, carrying about 924,000 ... more Photo: Jennifer Reynolds / Associated Press

Image 47 of 61 Clean up operations are underway near Houston afterKirby Barge 27706 and the bulk carrier Summer Wind, loaded with a million gallons of tar-like "bunker" oil, collided in a busy shipping channel on March 22. Some 168,000 gallons of oil had spilled in the accident. Cleanup agencies deployed more than 69,000 feet of containment boom near the crash site. less Clean up operations are underway near Houston afterKirby Barge 27706 and the bulk carrier Summer Wind, loaded with a million gallons of tar-like "bunker" oil, collided in a busy shipping channel on March 22. ... more Photo: PO3 MANDA M. EMERY / AFP/Getty Images

Image 48 of 61 The bulk carrier Summer Wind undergoes cleanup near Houston after Kirby Barge 27706 and the Summer Wind, loaded with a million gallons of tar-like "bunker" oil, collided in a busy shipping channel on March 22. Some 168,000 gallons of oil had spilled in the accident. Cleanup agencies deployed more than 69,000 feet of containment boom near the crash site. less The bulk carrier Summer Wind undergoes cleanup near Houston after Kirby Barge 27706 and the Summer Wind, loaded with a million gallons of tar-like "bunker" oil, collided in a busy shipping channel on March 22. ... more Photo: PO3 MANDA M. EMERY / AFP/Getty Images

Image 49 of 61 Emergency personnel block the road to the Texas City Dike following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014. Emergency personnel block the road to the Texas City Dike following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014. Photo: Brett Coomer / Houston Chronicle

Image 50 of 61 Emergency personnel block the road to the Texas City Dike following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. Emergency personnel block the road to the Texas City Dike following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. Photo: Brett Coomer / Houston Chronicle

Image 51 of 61 Bruce Clawson, Texas Emergency Management director, gives a news conference near the Texas City Dike following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. Bruce Clawson, Texas Emergency Management director, gives a news conference near the Texas City Dike following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. Photo: Brett Coomer / Houston Chronicle

Image 52 of 61 Environmental personnel drive onto the Texas City Dike for oil remediation following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. Environmental personnel drive onto the Texas City Dike for oil remediation following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. Photo: Brett Coomer / Houston Chronicle

Image 53 of 61 A sheen in seen on the waters of Galveston Bay near where crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike on Sunday, March 23, 2014, in Galveston. Dozens of ships are in evolved in clean-up efforts to remove oil that spilled after a ship and barge collided on Saturday afternoon. less A sheen in seen on the waters of Galveston Bay near where crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike on Sunday, March 23, 2014, in Galveston. Dozens of ... more Photo: Smiley N. Pool / Houston Chronicle

Image 54 of 61 A Coast Guard helicopter flies over as emergency crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike Sunday, March 23, 2014 in Texas City. A Coast Guard helicopter flies over as emergency crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike Sunday, March 23, 2014 in Texas City. Photo: Melissa Phillip / Houston Chronicle

Image 55 of 61 Emergency crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike Sunday, March 23, 2014 in Texas City. Emergency crews work along a barge that spilled oil after it was struck by a ship near the Texas City Dike Sunday, March 23, 2014 in Texas City. Photo: Melissa Phillip / Houston Chronicle

Image 56 of 61 A staging area is shown at the end of the Texas City Dike near the barge spill cleanup site Sunday, March 23, 2014 in Texas City. A staging area is shown at the end of the Texas City Dike near the barge spill cleanup site Sunday, March 23, 2014 in Texas City. Photo: Melissa Phillip / Houston Chronicle

Image 57 of 61 Jim Guidy with Kirby Inland Marine (right) listens as U.S. Coast Guard Petty Officer Andy Kendrick speaks about the oil spill during media conference Sunday, March 23, 2014, in Texas City. Jim Guidy with Kirby Inland Marine (right) listens as U.S. Coast Guard Petty Officer Andy Kendrick speaks about the oil spill during media conference Sunday, March 23, 2014, in Texas City. Photo: Melissa Phillip / Houston Chronicle

Image 58 of 61 U.S. Coast Guard Capt. Brian Penoyer (center) speaks about the oil spill during a news conference, Sunday, March 23, 2014, in Texas City. A barge that once carried some 900,000 gallons of heavy tar-like oil was cleared Sunday of its remaining contents, a day after the vessel collided with a ship in the busy Houston Ship Channel and leaked as much as a quarter of its cargo into the waterway. less U.S. Coast Guard Capt. Brian Penoyer (center) speaks about the oil spill during a news conference, Sunday, March 23, 2014, in Texas City. A barge that once carried some 900,000 gallons of heavy tar-like oil ... more Photo: Melissa Phillip / Associated Press

Image 59 of 61 Environmental personnel drive onto the Texas City Dike with oil containment booms for oil remediation following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. The barge carried 924,000 gallons of fuel oil. less Environmental personnel drive onto the Texas City Dike with oil containment booms for oil remediation following a barge collision in the ship channel, causing an oil spill Saturday, March 22, 2014, in Houston. ... more Photo: Brett Coomer / Associated Press

Image 60 of 61 A response boat heads to the scene of a collision between a ship and barge in the ship channel near the Texas City Dike on Saturday, March 22, 2014. Two workers on one of the vessels were exposed to hydrogen sulfide and decontaminated by the first department at the end of the dike. less A response boat heads to the scene of a collision between a ship and barge in the ship channel near the Texas City Dike on Saturday, March 22, 2014. Two workers on one of the vessels were exposed to hydrogen ... more Photo: Neal Mora / Associated Press