Fuel Dock Overview

Fuel Dock Information

Address 14 Ocean St, South Portland
Coordinates N 43° 38.550′ / W 070° 15.100′
Fuel available Diesel & 91 Octane
Dockside depth 13.0 ft
Approach depth 8.0 ft
Tide range 8.0 ft
Bulkhead length 125 ft
Largest vessel 160 ft
VHF monitored / working Channel 78

At The Marina

Water Free
WiFi Free
Pumpout $5.00
Restrooms
Showers
Laundry on site
Security
Cable
Pet Friendly
Yacht brokerage

Fuel Prices and Hours

Fuel prices move with the market through the season. Call (207) 799-8191 to confirm the
day rate before you plan a large fill.

Current Fuel Prices

Fuel / Service	Price
Diesel	$5.999 / gallon
Gasoline, 91 octane	$4.999 / gallon
BoatUS member discount, 500+ gallons	–$0.10 / gal
Pumpout	$5.00
Prices last updated	07/23/2026

Marina Hours

Season	Hours
In season, Sunday to Wednesday	8:00 AM – 6:00 PM
In season, Thursday to Saturday	8:00 AM – 8:00 PM
Off season, Monday to Friday	9:00 AM – 5:00 PM
Off season, weekends	Reduced hours
Emergency hauling	24/7

Both fuel prices include state and federal tax. The price posted is the price per gallon at the register.

Fueling happens at the fuel dock

South Port Marine does not run fuel to slips. There is no truck service, no mooring delivery, and no fueling anywhere else inside the basin. Every gallon goes aboard at the fuel dock.

Keeping fuel handling inside one area means the containment, the shutoffs, and the spill gear all sit where they belong, which protects Casco Bay water and every other boat in the marina.

Build the fuel stop into your run in or your run out. On summer weekends the dock gets busy, so hail on VHF channel 78 on the way in.

Call Before You Come In

Coming Into The Dock

The fuel dock sits on the South Portland waterfront at 14 Ocean Street, a short run in from Casco Bay and close to Portland’s Old Port district.

Thirteen feet alongside means most boats working these waters come in on any stage of the tide, including deeper-draft cruisers and downeast hulls that get turned away from shallower docks. The bulkhead runs 125 feet and the marina takes vessels up to 160 feet.

Tide range here averages 8 feet, so current runs through the approach on a moving tide. Rig fenders and lines on both sides before you make the turn in, because the side you land on depends on who is already alongside when you arrive.

Marina & Slip Info

Approach Specifications

Specification	Measurement
Dockside depth	13.0 ft
Approach depth	8.0 ft
Tide range	8.0 ft
Bulkhead length	125 ft
Largest vessel	160 ft
VHF channel	78

What a Maine winter does to the fuel in your tank

Your boat sits from November to April, and temperature swings pull moist air through the tank vent the whole time. Ethanol blends absorb that water until the fuel phase separates. Diesel does not absorb it at all, so it pools at the bottom and grows a bacterial mat. The first hard chop of the season stirs it up and sends it straight to your filters.

Fill the tank before layup to cut the air space that breeds condensation.
Dose gasoline with a stabilizer and diesel with a biocide.
Change filters at spring commissioning, not after the first offshore run.

ABYC-certified technicians handle fuel systems through the service department, and the parts counter covers do-it-yourself jobs. Boats laid up in indoor heated storage get winterized before they go inside.

Schedule Service Winter Storage

Why South Port Marine ?

Marina & Slips

170 Wet Slips ›

Winter Storage

12,000 Sq Ft Heated ›

Service Department

ABYC Certified Techs ›

Fuel Dock Questions

Anything not covered here, call the dock at (207) 799-8191 or hail on VHF channel 78.

How much is diesel and gas at the South Port Marine fuel dock?

Diesel is $5.999 per gallon and 91 octane gasoline is $4.999 per gallon, both tax included. Prices were last updated 07/23/2026 and move with the market. Call (207) 799-8191 for the day rate before a large fill.

What fuel does the South Port Marine fuel dock sell?

The dock sells diesel and 91 octane gasoline. Both prices post with tax included, so the number on the sign is the number you pay per gallon.

What are the fuel dock hours in South Portland?

In season the marina runs Sunday through Wednesday, 8:00 AM to 6:00 PM, and Thursday through Saturday, 8:00 AM to 8:00 PM. Off season runs Monday through Friday, 9:00 AM to 5:00 PM, with reduced weekend hours. Contact the yard to confirm seasonal changes.

Can South Port Marine deliver fuel to my slip or mooring?

No. All fueling happens at the fuel dock. There is no truck service and no delivery to slips or moorings anywhere in the marina. Plan the fuel stop into your run in or your run out, and hail on VHF channel 78 on the way.

Is there a discount for buying fuel in bulk?

BoatUS members take $0.10 off per gallon on purchases of 500 gallons or more. Call ahead at (207) 799-8191 if you are planning a large fill.

How deep is the water at the fuel dock?

Dockside depth is 13.0 feet and approach depth is 8.0 feet. Tide range averages 8.0 feet, so deeper-draft boats should time the approach around the stage of the tide.

What size boat can come alongside the fuel dock?

The bulkhead runs 125 feet and the marina handles vessels up to 160 feet. Larger vessels should call (207) 799-8191 to confirm space before arriving.

Can I pump out my holding tank at South Port Marine?

Yes. Pumpout is $5.00 and can be done on the same stop as fuel.

Does South Port Marine have transient slips for an overnight stay?

Yes. Of the 170 slips, 30 are set aside for transients at $3.45 to $4.50 per foot. Shore power comes in 110 volt, 50 amp, and 100 amp, individually metered and billed on usage. See marina and slip details.

What Our Clients Say About Us

    
 
 
       
   Bill Wassmer 
 
 
  Tyler and Tyson were awesome.  They even helped is get our large provisions order back to the marina with their boatyard truck.

Diesel fuel was also easy at the separate fuel dock.  This marina gets a thumbs up
  
 
      
   Joshua Butkus 
 
 
  Stay with South Port Marine. Great staff, good prices, well stocked dock shop, quick walk to restaurants, cafe's grocery, ATMs, and pharmacy. We docked through Dockwa with a 38' sloop. Coming and going was a breeze, deck hands were always around, channel is clearly marked. Mandy the dock master and her staff were gems. We'll be back.
  
 
      
   Mark Kenney 
 
 
  
  
 
      
   Faith Mishkin 
 
 
  
  
 
      
   James S 
 
 
  Excellent marina with exceptional service. Thank you, Tyler, Tyson, Steve, and the rest of the crew for making things happen on the docks.
  
 
      
   Jerry Carr 
 
 
  Great little harbor area. Craft vendors when cruise ships are in. Chowder House has the best clam chowder, get a large bowl!
  
 
      
   Christipher Brennig 
 
 
  My experience buying a boat and the service from Mike Samoisette at South Port Marine was bar none one of the best experiences I could have hoped for.  Mike (and all at the marina) went above and beyond to help educate me about boat buying/ownership/maintenance etc.  Mike and his team pulled off a very tight timeline for delivery of the boat and made sure it was done in the most professional manner.  Many thanks to Mike and South Port Marine for a wonderful experience around this big occasion for me.
  
 
      
   Mark Reardon 
 
 
  Brought an old Mercury marine outboard here after I exhausted my own repair abilities. They did an outstanding job and I later noticed they fixed a few other issues with the engine I didn’t even ask about. Larry is the man. Great Mercury parts availability and prices too.
  
 
      
   K Spo 
 
 
  Nice clean marina. Staff super polite and helpful.
  
 
      
   Zac Bongiorno 
 
 
  Eric at Southport Marine who is not only super easy to contact. which included extremely quick response times and the ability to call at any time. Which is something that can not be said about every boat dealership. As the captain of my families boats and more of a eye for detail I was tasked with looking for out next boat. Being in my early 20’s
many dealers or boat shows would even let me on the boat. Eric not only treated my twin in I with great respect, but also worked with us to comeuppance with a deal I have no regrets about. In all highly recommend South Port Marine and will be back for our next boat in a few years.

Thanks Eric!