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EXHIBIT 10(j)

AGREEMENT FOR THE SALE AND PURCHASE OF
LIQUEFIED NATURAL GAS

Between:

Societe Nationale SONATRACH, with registered office in Algiers, 80
Avenue Ahmed Ghermoul, hereinafter referred to as the "Seller", represented by
its Vice President in charge of the Marketing Department, Slimane Bouguerra,
authorized to execute this Contract,

on the one hand
and

Distrigas Corporation, a corporation organized and existing under the
laws of the State of Delaware, with its principal office in Boston,
Massachusetts, 125 High Street, hereinafter referred to as the "Buyer",
represented by its Vice President, John G. L. Cabot,

on the other hand,

WITNESSETH

WHEREAS, Alocean, Ltd., a Bermudian Corporation (ALOCEAN), and Buyer have
concluded contracts for the sale and purchase of LNG dated December 3, 1969 and
September 10, 1970 and an amendment to these contracts has been concluded
between the two parties on October 4, 1975;

WHEREAS, Alocean and Buyer have concluded a contract for the sale and
purchase of LNG dated October 4, 1975 relating to additional quantities to be
delivered from July 1, 1976 to December 31, 1977;

WHEREAS, Seller and Buyer now deem it desirable, subject to Alocean's
obligations under the above-mentioned contracts being assumed by Seller, that
the latter sell LNG directly to Buyer rather than through Alocean,

and

WHEREAS, Seller and Buyer have agreed in accordance with a protocol
signed by them June 6, 1975, to increase, beginning January 1, 1978, the
quantities of LNG provided in the above-mentioned contracts and to conclude
between themselves a new contract which replaces the abovementioned contracts,
beginning January 1, 1978, setting forth the new terms

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under which all quantities of LNG sold by Seller to Buyer will be delivered,
beginning on such date.

IT IS AGREED AS FOLLOWS:

ARTICLE 1

DEFINITIONS

For the purpose of this agreement, the words and terms contained in
Appendix A attached hereto and which are an integral part of this agreement,
will have the meanings defined in said appendix.

ARTICLE 2

PURCHASE AND SALE

Under the terms and conditions hereinafter set forth, Seller agrees
to sell and to deliver to Buyer and Buyer agrees to purchase and to receive
from Seller and to pay for liquefied natural gas (LNG) in the quantities, at
the times, and at the price hereinafter set forth.

ARTICLE 3

SOURCE OF SUPPLY

The LNG sold by Seller and delivered to Buyer will come from natural
gas wells located in Algeria.

Seller represents that the LNG which is to be sold under the
provisions of this agreement will be produced by the first four liquefaction
units at Seller's liquefaction plant at Skikda, Algeria.

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ARTICLE 4

FACILITIES OF SELLER. SHIP. DELIVERY POINT.
FACILITIES OF BUYER. PORT. TRANSFER OF TITLE.

SECTION 4.1. Facilities of Seller. Ship. Seller shall secure or shall
have secured the delivery of the LNG mentioned above by an LNG tanker
conforming with the specifications set forth in Appendix D to this agreement,
the name of which shall be notified by Seller to Buyer before June 1, 1976.
Seller has the right to substitute for such LNG tanker another LNG tanker
subject to the condition that such LNG tanker be of equivalent size and
specifications, or multiple tankers of smaller size subject to the condition
that their conception and characteristics be compatible with Buyer's facil-
ities, and in both cases subject to the condition that neither the quantities
to be delivered under the terms of this agreement nor the sales price of the
LNG to be paid by Buyer be modified because of this substitution. Seller shall
be obligated to provide additional LNG tankers, subject to the same conditions,
if necessary to deliver all quantities set forth in Section 6.1., subject to
the conditions of Section 13.1 below.

SECTION 4.2. Delivery Point. Delivery of the LNG sold and purchased
under this agreement will be made by Seller to Buyer on board an LNG tanker at
the port of destination, and the point of delivery shall be at the flange
connecting the permanent equipment of the LNG tanker with the receiving arms of
the facilities at the port of destination designated by Buyer.

SECTION 4.3. Facilities of Buyer. Buyer shall construct, maintain and
operate or cause to be constructed, maintained and operated at its sole cost,
expense and risk, at the port of destination, docking, discharging and
receiving facilities.

The docking facilities shall be capable of receiving, docking and
handling at all times whether in daytime or at night-time, in all safety and
always afloat, a LNG tanker no more than two hundred and eighty (280) meters in
length with a draft of approximately eleven meters and ten centimeters (11.10)
of water at full capacity and which is capable of transporting approximately
one hundred and twenty five thousand (125,000) cubic meters of LNG. The
configuration of Buyer's facilities is shown in Appendix C.

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The discharging facilities shall include pipes and other equipment of
sufficient capacity to permit the discharging of an LNG tanker at rates as
indicated in Section 11.3 below. Such facilities shall also include a vapor
return line sufficient in size to return natural gas vapors from Buyer's
storage tanks to the LNG tanker.

The receiving facilities shall include storage and other facilities of
sufficient capacity to permit receipt of full cargoes of LNG at the rates of
delivery specified above.

Buyer shall also provide, free of cost to Seller, facilities adequate
to supply the LNG tankers with fresh water, liquid nitrogen and telephone.

SECTION 4.4. Port. The scheduled port of destination is the port of
Boston (Massachusetts) where Buyer has now at its disposal the required
facilities as defined above. However, Buyer shall have the right to designate
any other safe port on the East coast of the United States of America, subject
to such designation being notified to Seller in writing at least 15 days prior
to the scheduled date of delivery; provided, however, that all required
authorizations and permits, and any delay which may result therefrom, shall be
the responsibility of Buyer; provided also that the sales price stated in
article 9 hereinafter shall be adjusted in such case to take into account the
variations in the length of the voyage and any additional costs which would be
incurred as a result therefrom.

SECTION 4.5. Passage of Title. Title to and risks regarding the LNG
sold and purchased hereunder shall pass from Seller to Buyer at the port of
discharging at the time of passage of the product through the connecting flange
of the ship's permanent equipment.

ARTICLE 5
LIABILITY

While the LNG tanker is being berthed or leaving the berth, and as
long as it is berthed at the Buyer's dock, each party will be responsible to
the other party for any proven injuries or damage, excluding all indirect
consequences, which may be caused to the other party by the fault or act of the
first party, its own employees, representatives, contractors or suppliers of
services.

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Seller shall cause the LNG to be delivered and Buyer shall receive
the LNG at the delivery point with due compliance with appropriate safety
precautions.

ARTICLE 6

QUANTITIES AND RATE OF DELIVERIES

SECTION 6.1. Contractual Annual Quantities and Rate of Deliveries.
The contractual annual quantity which Seller agrees to sell and deliver to
Buyer and which Buyer agrees to receive and pay for on a firm "take or pay"
basis is one million nine hundred thousand (1,900,000) cubic meters of LNG,
plus or less five percent at Seller's option, corresponding to seventeen (17)
full cargoes of a ship with a capacity of approximately one hundred twenty five
thousand ( 125,000) cubic meters.

Seller and Buyer shall provide that annual inspections and overhauls
of the plants and facilities necessary to carry out the operation contemplated
by this agreement and of the LNG tanker shall take place preferably during the
summer or at any such other suitable time of the year selected by mutual
agreement as will not entail a decrease in the annual quantity of LNG the
delivery of which is provided for by this agreement. Seller and Buyer shall
notify each other of schedules of such annual inspections and overhauls ninety
days prior to their commencement.

SECTION 6.2. Schedule of Deliveries. Seller shall submit to Buyer
no later than sixty (60) days prior to the beginning of each year the schedule
of deliveries which it proposes for such year. For each quarter of the year,
and no later than thirty (30) days prior to the beginning of each quarter,
Seller shall confirm the schedule for such quarter.

Ten (10) days prior to the beginning of each calendar month, Seller
shall confirm by telex to Buyer the schedule of deliveries for such month.

Seller shall promptly notify Buyer by telex of any loading at Skikda
of LNG to be delivered to the latter and of the departure from Skikda of such
cargo and the estimated time of arrival at Buyer's terminal.

Seller shall make its best efforts so that the deliveries be always
spaced by approximately twenty (20) days.

ARTICLE 7
QUALITY

The LNG delivered by Seller by Buyer will have in the gaseous state:

-- a PCS of between 9,640 Kcal/Nm3 and 10,650 Kcal/Nm3

-- constituent elements the percentage of which will vary within the
following limits (in molecular percentage):

Nitrogen N2 between 0.2 and 1.4
Methane C between 85.65 and 96.6
Ethane C2 between 3.2 and 8.5
Propane C3 between 0.0 and 3.0
Isobutane iC4 between 0.0 and 0.52
Normal butane NC4 between 0.0 and 0.7
Pentane C5 plus between 0.0 and 0.23

-- an amount of H2S not exceeding zero point five (0.5) part per
million in volume

-- an amount of mercaptan sulfur not exceeding 2.3 mg/Nm3

-- an amount of total sulfur not exceeding 30 mg/Nm3.

The verification of the PCS and of the composition of the LNG in
compliance with the above specifications shall be made in accordance with the
provisions of article 8 below.

For the verification of the amounts of sulphur and H2S, the
procedures defined by the standards ASTM D 2385 and D 3031 shall be applied.

ARTICLE 8
MEASUREMENT AND TESTING

SECTION 8.1. Gauging. The quantities of LNG delivered under this
agreement shall be measured in metric units by gauging of the liquid in the
ship's tanks.

The first gauging shall be made immediately after the ship's captain
has given his Notice of Readiness to discharge and as soon as the ship is

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berthed, the linking of the gaseous stages between the ship and the terminal
and the balancing of pressures have been achieved.

A second gauging shall be made immediately after the end of
discharging.

These gaugings shall be made by Seller. Buyer shall have the right to
be present if it so wishes.

Seller shall provide Buyer with a certified true copy of the gauging
scales for each of the tanks of the ship in metric units approved by the
Service des Instruments et Mesures de Paris as well as of the correction
tables (list, trim, contraction of the tanks, etc . . . ). These scales and
tables shall be used for the entire duration of the agreement unless the tanks
are physically modified, in which case new scales and tables shall be
established.

SECTION 8.2. Determination of Density. The density of the LNG shall
be determined by measurement on board the ship, by means of approved
instruments.

In the case of defective functioning of the measuring equipment, the
density shall be determined by a calculation from the molecular composition
determined in accordance with Section 8.4 below, for the average temperature
defined in Section 8.3.

The method of calculation shall be that generally used by Seller for
its sales of LNG to other buyers and should it be changed from the method now
used, shall be mutually agreed upon by Buyer and Seller.

The density shall be expressed in kg/m3.

SECTION 8.3. Determination of the Temperature. The temperature of
the cargo shall be the arithmetic average of the temperatures indicated by the
temperature-registering devices immersed in the LNG in all of the tanks.

The temperature-registering devices, thermocouples or "resistance
probes", shall be distributed over the entire height of the tanks and shall be
accurate to 0.2[degree]C, more or less, subject to the condition that the
instruments are capable of being that accurate. These temperatures shall
either be recorded in writing or printed.

SECTION 8.4. Sampling. One or several representative samples of the
LNG shall be taken at a point located as close as possible to the discharging

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flange of the LNG tanker. The sampling device shall permit the total
vaporization of a definite quantity of LNG allowing the taking of
representative gaseous samples.

The device shall be chosen by mutual agreement between Seller and
Buyer. Samples shall be analyzed with the aid of a chromatograph approved by
Seller. The analysis or the average of these analyses shall determine the
molecular composition of the LNG.

A calibration of the chromatograph used shall be made before each
delivery, with the aid of a gaseous sample, in the presence of a representative
of Seller being present if it so wishes.

SECTION 8.5. Determination of the Gross Heating Value. The gross
heating value (PCS) of the regasified LNG shall be calculated from its
molecular composition determined in accordance with Section 8.4, from the
molecular masses and from the PCS at 0[degree]C at a pressure of 760 mm/Hg
of each of the constituent elements.

The PCS shall be expressed in thermies/kg.

The PCS values of each of the constituent elements are indicated in
the table attached hereto as Appendix B. They are deduced from the physical
values given by the tables of API Research Project 44; they shall be
corrected, without retroactive consequence, in the case of changes published
later by the API.

SECTION 8.6. Determination of the Thermies of BTU's Delivered. The
quantity of thermies delivered by the ship shall be computed from the following
formula:

Qth = V X M X PC

in which:

Qth represents the quantity of thermies delivered

V represents the volume in cubic meters of LNG discharged in
m3, determined in accordance with Section 8.1

M represents the density of LNG determined in accordance with
Section 8.2, and expressed in kg/m3

PC represents the PCS determined in accordance with Section 8.5
and expressed in thermies/kg

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The quantity of millions of BTUs (MMBTU) delivered shall be equal

QMMBTU = Qth X 3,968.3
-------------
1,000,000

SECTION 8.7. Methods of Operation. The gauging equipment in the
ship's tanks and the equipment for measuring the density of the LNG, shall be
provided, operated and maintained by the Seller at its expense. The equipment
and material utilized for the determination and tests of the quality of the
product shall be provided, operated and maintained by Buyer, at its expense.

Any measurement and any calculation relating to the gauging and the
determination of the density of the LNG shall be made by Seller, in the presence
of a representative of Buyer if Buyer so wishes. Any measurement and any
calculation relating to the determination and tests of the quality of the LNG
shall be made by Buyer, in the presence of a representative of Seller if
Seller so wishes.

The absence of one of the parties will affect neither the taking of the
measurements nor the preparation of the calculations incumbent upon the other
party.

At any time, one party shall have the right to inspect the measuring and
testing equipment provided by the other party, after prior notice to the latter.

Calibration of an instrument shall be made by the party in charge of the
operation of this instrument, the other party having the right to be present at
such operations.

However, all data relating to the tests, diagrams, calculations or any
other similar information must be made available to the parties and kept for a
period of at least three (3) years.

SECTION 8.8. Accuracy of Measurements. The accuracy of the equip- ment
used may be verified on request of Seller or Buyer. Such verifications may only
be made if the two parties are present by methods recommended by the makers of
the instruments or by any other method agreed upon by Buyer and Seller.

If, when verified, a measuring apparatus shows errors of less than one
percent (1%) the previous reports on this equipment shall be considered correct
regarding calculation of deliveries and the equipment shall be adjusted
immediately as needed.

If, when verified, a measuring apparatus shows errors of more than one
percent (1%), the previous reports on this equipment shall be recalculated to a
zero deviation by comparison to calibration results for any definitely known or
agreed period; but if the period in which this error occured were not definitely
known or agreed upon, this correction would be made for half of the deliveries
since the date of the last calibration.

The equipment for measuring the level of the LNG and its mass, and the
temperature in the ship's tanks, as well as the chromatographs for analysis of
natural gas, shall be the most reliable and accurate instrument known at the
time they are chosen.

The equipment shall be professionally installed. The parties shall make
every effort to obtain from the Service des Instruments et Mesures de Paris
approval of measuring equipment and apparatus used.

SECTION 8.9. Disputes. Any dispute on the choice of the type and
accuracy of the measurement apparatus, the result of a measurement, a sampling,
an analysis, a calculation or method of calculation, shall be referred to the
Ecole Polytechnique Federale de Zurich (Technische Hochschule, Zurich).

Any decision of this body shall be binding on Seller and Buyer.
Expenses incurred relating to the services of this body shall be evenly divided
between Seller and Buyer.

ARTICLE 9
PRICE

The sales price of the LNG, ex-ship, port of destination, is equal to
the sum of the FOB price plus the cost of transport, determined in accordance
with sections 9.1 and 9.2 hereinafter. It is expressed in U.S. dollars per
million BTUs delivered.

SECTION 9.1. FOB Price. The FOB price, Algerian coast, is either
determined in accordance with section 9.1.1 hereinafter, or equal to the

Minimum Price determined in accordance with section 9.1.2 hereinafter if the
latter is greater. The former price shall be computed on the first working day
of each semester of the Gregorian calendar. The latter price shall be computed
on the first working day of each month. The FOB price shall be the greater of
the two and shall apply to the deliveries which will or must be made during the
course of the month concerned.

SECTION 9.1.1. Invoiced Price, Except for Application of the
Minimum Price. The FOB portion of the invoiced price shall result from the
application of the following formula:

P = P0 (0.5 F + 0.5 F')
- -
F0 F'0
in which:

P = the invoiced price in U. S. dollars;

P0 = the base price taken as equal to U. S. $1.30 per million BTU on July 1,
1975;

F = the price, expressed in U. S. dollars per barrel, of "No. 2 fuel oil",
resulting from the arithmetic average of the highest prices published
by Platt's Oilgram under the heading "Atlantic and Gulf Coast, New
York Harbor District" for each day during a period of six consecutive
months ending one month prior to the beginning of the semester for
which the invoiced price is computed;

F0 = U. S. $12.642 per barrel

F' = the price, expressed in U. S. dollars per barrel, of "No. 6 fuel oil,
low pour" having a maximum of 0.3% sulfur, resulting from the
arithmetic average of the average prices published by Platt's Oilgram
under the heading "Atlantic and Gulf Coast, New York Harbor District,
No. 6 Fuel Rack" for this fuel oil, for each day during a period of
six consecutive months ending one month prior to the beginning of the
semester for which the invoiced price is computed;

F0' = U. S. $13.505 per barrel

If the price of one of the above-mentioned fuels were not published in
Platt's Oilgram, the last available published price would be applied. If the
price of one or both above-mentioned fuels were no longer published in Platt's
Oilgram, Buyer and Seller would mutually agree upon one or more than one new
reference indices for equivalent products, or, lacking that, for products having
characteristics as similar as possible.

SECTION 9.1.2. Minimum Price. The Minimum Price will result from the
application of the following formula:

PM = PM0 (E + 1)

in which:

PM = the Minimum Price computed in U.S. dollars;
PM0 = the base Minimum Price taken as equal to U.S. $1.30 per million BTU
on July 1, 1975;
E = the arithmetic average of the results obtained by applying the
formula B to each of the six (6) currencies (the
--- - 1 "Currencies") of the following countries:
A Belgium, France, the Federal Republic of
Germany, Italy, Switzerland and the United Kingdom, in which:

A = the average commercial rate of exchange in
effect for the month of July 1975, on the London
Market, for each of the Currencies, expressed in
cents of U.S. dollars for one unit of each
Currency (to the nearest 6th significant
figure). The commercial rate of exchange
referred to above for each of the Currencies
is set forth in the following table:

IN CENTS OF
COUNTRY CURRENCY U. S. DOLLARS
------- -------- -------------

Belgium Franc belge 2.719421
France Franc francais 23.707874
Federal Republic
of Germany Deutschmark 40.597400
Italy Lira 0.154130
Switzerland Franc suisse 38.350735
United Kingdom Pound 218.483913

B = the commercial rate of exchange for each of the
Currencies and shall be the arithmetic average, as
certified by National Westminster Bank Limited of
London (the "Bank"), of the average purchase and
sale rates quoted for exchange transactions by
cable transfer published by the Bank at 10:30 GMT
for each business day during the month preceding
the day of computation of the Minimum Price and
expressed in cents of U.S. dollars for one (1) unit
of such Currency (rounded to the nearest 6th
significant fiqure).
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In the absence of quotations concerning a Currency on a given day, the
rate of exchange of payment for such day shall be that of the last day on
which such rate shall have been used.

Item E shall be considered equal to 0 as long as its absolute value
shall not vary by 0.01 or more in relation to zero. When such level shall have
been attained or surpassed, the Minimum Price shall be computed by using the
value of E as computed above. Such value of E shall thereafter remain the
value used for the computation of the Minimum Price as long as a new variation
of 0.01 or more in relation to such value shall not have taken place.

If, for any currency, the Bank quote at 10:30 GMT of a business day more
than one category of rates for purchase and sale for cable transfer exchange
transactions, the purchase and sale rate for such Currency shall be the
arithmetic average of each category of purchase and sale rates quoted.

If the Bank refuses or is unable to act, Buyer and Seller shall elect
another large London bank by mutual agreement.

In the case of consolidation, subdivision or replacement in whatever
manner, or of any other similar modification affecting any of the Currencies,
the corresponding successor currency shall be substituted for the Currency or
Currencies so consolidated, subdivided, replaced or changed in that ratio of
units of the old currency to units of the old currency to units of the successor
currency in order to reflect most appropriately the terms of such consoli-
dations, subdivisions, replacements or changes and the initial exchange rate of
such Currency or Currencies shall be revised, as the case may be, in order to
reflect most appropriately such consolidations, subdivisions, replacements or
changes, in a way accepted by both parties. Deliveries commenced during a
calendar month, but completed at a time in the following calendar month, shall
be at the rate in effect on the date when discharging operations commenced.
Whatever the value of E may be, PM shall never be less than PMo.

SECTION 9.2. Cost of Transport. The cost of transport is determined on
January 1 of each year, for the duration of this contract, for all deliveries to
be made during the following twelve months, in accordance with the following
formula:

C = 2.36 G + 1.29 H + 6.13 P+ 2.29 I + T
-- -- -- --
Go Ho Po Io

in which;

T = To(E+1)

To = 60.52 + 9.30 S
-
So
C = cost of transport per MMBTU delivered expressed in cents of U.S.
dollars; as of July 1, 1975, C = 81.89.

G = Average value over the 31 days of the month of December of the year
immediately preceding the year for which the cost of transport is
being determined of the highest daily prices quoted for No. 6 fuel
in the publication Platt's Oilgram Price Service under the heading
Atlantic and Gulf Coast--New York Harbor (POPSAGCNYH), and
expressed in U.S. dollars per barrel;

Go = average value over the 30 days of the month of June, 1975, of the
highest daily prices quoted for No. 6 fuel by the publication
POPSAGCNYH; Go = $13.95 per barrel.

I = total annual charges incurred in the year for which the cost of
transport is being determined for the insurance of the LNG tanker
"Ben Franklin"; expressed in U.S. dollars.

The insurance of the LNG tanker shall cover risks to the hull and
machinery, safe arrival, ordinary risks, and war risks and shall
include risk, protection and compensation insurance.

If, in accordance with Section 4.4 of Article 4 of this contract, a
ship other than the "Ben Franklin" is used to transport the LNG, I
shall be determined in the above manner for such ship.

Io = U.S. $1,000,000.

H = total port charges incurred by the LNG tanker during the year
immediately preceding the year for which the cost of transport is
being determined, expressed in U.S. dollars. Port charges invoiced
and paid in a currency other than U.S. dollars shall be recorded for
the computation of H in dollars at the rate in effect on the date of
invoicing. If the ship makes less than 17 voyages during the year
immediately preceding the year for which the cost of transport is
being determined, H shall be determined pro rata

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according to the number of voyages actually made. For the first year
of the contract the figure H is contractually fixed at the value Ho.

Ho = U.S. $591,000;

P = the FOB price determined in accordance with Section 9.1 in U.S. dollars;

Po = the base FOB price taken as equal to U.S. $1.30 per million BTU on July
1, 1975;

E = the same meaning as in Section 9.1.2 above;

S = the value for the month of June of the year immediately preceding the
year for which the cost of transport is being determined, of the index
"average Hourly Earnings of Non-Supervisory Workers" in "Transportation
and Public Utilities", published in "Employment and Earnings" by the
U.S. Department of Labor;

So = the value of the above defined index S for the month of June, 1975, i.e.
$5.82.

ARTICLE 10

TAXES AND DUTIES

All duties, taxes and imposts affecting the LNG cargo and collected by
the Government of the United States of America shall be borne by Buyer.

All duties, taxes and imposts affecting the LNG cargo and collected by
other states and all duties, taxes and imposts affecting the LNG tanker shall be
borne by Seller.

ARTICLE II

DISCHARGING

SECTION 11.1. Notice of Arrival. Seller shall notify Buyer or cause
Buyer to be notified, at least seventy-two (72) hours and again at least
twenty-four (24) hours in advance of the estimated hour when the LNG tanker will
arrive at the port designated by Buyer.

SECTION 11.2. Notice of Readiness to Discharge. As soon as the LNG
tanker arrives at the port of discharge, that is, for Boston, at the pilot's
station, the captain of the ship or the representative of Seller shall notify
Buyer or its representative, by any means, at any hour of the day or night.

Buyer represents and warrants that the Buyer's facilities will be ready
for receiving and discharging the LNG tanker as soon as it has arrived with no
expense for such use to be charged to Seller by Buyer.

SECTI0N 11.3. Laytime.

(a) Authorized Laytime. Buyer shall be allowed as authorized laytime
for discharging and receipt of the cargo and any other purposes connected
therewith 24 running hours, Sundays and holidays included, if the capacity of
the LNG tanker is over 80,000 cubic meters, and 20 running hours, Sundays and
holidays included, if the capacity of the LNG tanker is less than 80,000 cubic
meters.

(b) Beginning of Authorized Laytime. Laytime shall commence either at
the expiration of the six running hours following delivery to Buyer of the
Notice of Readiness provided in Section 11.2 above, or at the time of attachment
of the discharging arms of the Buyer's terminal to the permanent vessel
connections whichever occurs first.

(c) Extension of Authorized Laytime. The authorized laytime as
defined in paragraph (a) of this Section shall be extended should the time
consumed by the ship to get to the discharging berth, after delivery of the
Notice of Readiness to Discharge, exceed six hours for one of the following
reasons:

1. failure of the ship;

2. application of the regulations in force at the time of execution of
this agreement or of decisions of governmental authorities or
agencies taken pursuant to such regulations;

3. prohibition from proceeding to the berth by night;

4. weather conditions including bad weather.

The term of extension shall be equal to the delay of the ship in getting
to the dock over and above the above-mentioned six hours in the first three
cases; to half such delay in the fourth case.

Should the regulations referred to in 2. above be materially amended
after the date of execution of this agreement, the parties shall meet to
determine the effect of such amendments on the cost of transportation and adjust
it, if relevant, by mutual agreement.

While the ship is berthed, should there occur a period of time during
which Seller's and Buyer's facilities simultaneously fail, the authorized
laytime shall be extended by a term equal to half such period.

While the ship is berthed, should there occur a delay attributable
exclusively to the LNG tanker, caused, among other things, by breakdown or
inability of the LNG tanker facilities to discharge the cargo within the allowed
time, a term equal to this loss of time shall be added to the authorized
laytime.

SECTION 11.4. Demurrage. The discharging of the LNG tanker will end
either at the time when the discharging arms of the Buyer's terminal are
disconnected from the permanent vessel connections, or when the documents
relating to the operations effected are delivered on board, whichever comes
last. Should the discharging end after expiry of the authorized laytime as
defined in Section 11.3 above, Buyer shall pay demurrage to Seller at the rate
provided in Appendix E.

Demurrage shall be prorated for a fraction of a day. Such rate shall be
adjusted on January 1 of each year, the first adjustment taking effect on
January 1, 1978, in the same proportion as the cost of transport, in accordance
with the formula set out in Section 9.2.

If, however, demurrage accrues at the port of discharge

(1) by reason of strike or lockout preventing or delaying the
LNG tanker from reaching or entering the port, or docking or
discharging, or

(2) by reason of fire, explosion, breakdown or deficiencies in
the shore facilities of Buyer or its agents,

the rate of demurrage shall be reduced to one-half for the demurrage thereby
incurred. In such event, Seller agrees to waive the provision of Section 4.2
requiring 15 days' notice for instructions to proceed to another port. However,
in case of delay to the LNG tanker caused by a strike, lockout, fire, explosion
or breakdown commencing or occuring after expiry of the authorized laytime, the
full rate shall apply, unless such event

commences or occurs while the LNG tanker is already on half-demurrage, in which
case the half-demurrage rate shall continue to apply until termination of the
event having caused it.

SECTION 11.5. Supply of Discharging Arms. Buyer shall supply the
arms necessary to discharge LNG. These arms will be connected to the discharging
pipe of the ship by Buyer or, at the request of the captain, by the ship but at
the risk and cost of Buyer.

ARTICLE 12
INVOICING, PAYMENT AND ERRORS

SECTION 12.1. Invoicing and Payment.

(a) Immediately upon completion of each discharging, Seller shall
prepare and deliver to Buyer the documents showing the measurements and
calculations made in compliance with Article 8 concerning the delivered cargo.

Seller shall also prepare and deliver promptly to Buyer, for each cargo
of LNG, an invoice showing the quantity of delivered BTUs based on the PCS of
the LNG and the sum in U.S. dollars due by Buyer to Seller.

Buyer shall pay Seller the sums invoiced to and due by Buyer to Seller
for each delivered cargo of LNG within ten (10) days following receipt of the
invoice. In the case of a delay in the payment of the invoices, the amounts owed
by Buyer shall bear interest at a rate of ten (10) percent per year.

(b) If no payment is made within a period of thirty (30) days, Seller
shall have the right to suspend further deliveries until payment is made and
such suspension will neither entitle Buyer to claim any compensation therefor
nor release Buyer from its obligations under this agreement.

(c) In the case of a dispute about the preparation of an invoice, Buyer
shall pay the amount of such invoice as a deposit. Seller and Buyer shall
thereafter determine what corrections are to be made to the invoices in
dispute. Any adjustment to be made to the payment, either by Buyer or by
Seller, shall bear interest, from the due date of payment until the date of the
adjustment, at a rate of ten (10) percent per year.

(d) If Buyer is unable or unwilling to take delivery of one or several
cargoes of LNG to be tendered to it as provided by this agreement, Buyer shall
nevertheless be obligated to pay Seller for the corresponding quantities of LNG
at the price indicated in Article 9. Seller shall immediately issue and deliver
to Buyer for each cargo which would not be taken as indicated above an invoice
for an amout equal to the sum in U.S. dollars due by Buyer to Seller. Buyer
shall pay the sum invoiced by and due to Seller within ten (10) days after Buyer
receives the invoice.

(e) The sums owed by Buyer to Seller pursuant to the terms of this
Section will be paid in U. S. dollars and the corresponding payments will be
made to Buyer to the bank account of Seller mentioned on the invoice.

(f) Should Buyer, pursuant to this agreement, pay for an LNG cargo
without taking delivery thereof, Seller shall credit Buyer with the proceeds of
any sale of such cargo to a third party, after deducting the expenses reasonably
incurred in connection with such sale to a third party.

SECTION 12.2. Errors. In the event of any error being found in the
amount shown on any invoice issued pursuant to Section 12.1, such error shall be
corrected within one (1) month after it has been found, provided notice thereof
shall have been given within three (3) months from the date when the invoice was
issued.

ARTICLE 13

FORCE MAJEURE AND ALLOCATION OF PRODUCTION

SECTION 13.1. Force Majeure. The contracting parties shall be
temporarily released, in whole or in part, from their obligations: in the case
of events such as, especially:

- fire, flood, atmospheric disturbance, storm, hurricane,

- earthquake, undermining of the ground, landslide, lightning,
epidemic,

- war, riot, insurrection, act of a public enemy, . . . .

- strike, lockout, . . . . .

provided that the burden of establishing that such an event has occured and has
the characteristics of force majeure shall lie on the party claiming such
release; and in the case of the following events:

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20

- severe accident with respect to operation or equipment affecting
the facilities for the production of natural gas in the field,
the transportation by the main pipe line in Algeria, the
processing, the liquefaction, the storage, the loading
operations, the transportation by LNG tanker and the receiving
facilities, the storage, the regasification as well as the main
exit pipeline from the regasification plant to the first
branching on such pipeline provided that the length of any such
exit pipeline shall not exceed twelve (12) U. S. miles, of such
nature that its consequences cannot be overcome by using
reasonable means at a reasonable cost,

- act of a third party affecting the same items as above, such that
this act or its consequences cannot be overcome by using
reasonable means at a reasonable cost,

- any act or failure to act of any public authority of Algeria or
any other country entailing the suspension of the operations
which are the subject of this agreement.

The concerned party shall as soon as possible after any of the
abovementioned events has occurred give notice to the other party by letter, or
by telephone or telex confirmed by letter.

It is agreed that in no event shall Seller or Buyer be released from
obligations already existing upon them at the date of the notice, including the
Buyer's obligation to pay the sums owing on such date for the payment of the
quantities of LNG previously delivered.

In all cases, the contracting parties shall make all appropriate
arrangements to resume within the shortest possible period of time the
performance of the agreement.

SECTION 13.2. Allocation of Production. When for any reason,
including but not limited to force majeure, production from the first four
liquefaction units at Seller's liquefaction plant at Skikda is at any time
insufficient to permit full performance of this agreement, Seller will
immediately allocate production among Buyer and its other customers for LNG from
those units in accordance with the following provisions:

1. No LNG will be delivered to any third party from any of the
first three liquefaction units other than Buyer and Seller's other
customer presently receiving deliveries of LNG from those units under
contracts in force as of the date of execution of this agreement.
21

2. No LNG will be delivered from the fourth liquefaction unit
to any third party other than Buyer and Seller's other customer for LNG
from such unit under a contract existing as of the date of execution of
this agreement.

3. Seller undertakes to provide to Buyer regular current
information on production from the first four units at Skikda and
quantities delivered to its customers from those units. Subsequent to
the resumption of normal production from the first four liquefaction
units, permitting full performance of this contract, Seller will furnish
to Buyer a summary schedule of production and deliveries made from such
units during the period of allocation.

This provision shall in no way limit Seller's ability to deliver nor
Buyer's ability to receive quantities of LNG from other liquefaction units which
may be built at Skikda in the future.

ARTICLE 14

EFFECTIVE DATE AND TERM OF THE AGREEMENT

This agreement shall enter into effect on the date of its execution
subject to the condition mentioned in Section 18.1 and shall become operative
from January 1, 1978.

This agreement shall remain in effect for twenty (20) consecutive years
from the date of the first regular delivery of LNG.

The first regular delivery of LNG is defined as being the first of at
least 13 deliveries of complete cargoes made over a period of 12 months
totaling at least 1,400,000 cubic meters.

It is agreed that this agreement may not remain in effect after January
1, 2000, unless otherwise mutually agreed.

ARTICLE 15

NOTICES

Any notice, request, claim, invoice, report or other communication
required or provided for by this agreement, or any notice that one party may
22

wish to give to the other party, shall be in writing and deemed to have been
duly delivered when personally handed over to a qualified employee of the party
or to its duly appointed representative or when received by registered letter
or telegram to the address of such party or of the duly appointed person.

Seller and Buyer now designate their addresses as follows:

Seller: Sonatrach
80 Avenue Ahmed Ghermoul
Algiers, Algeria

Buyer: Distrigas Corporation
125 High Street
Boston, Massachusetts 02110
U.S.A.

Either party may change its address by giving the other party prior written
notice thereof.

Any notice mailed or sent by telegram shall be deemed to have been given
on the date when received by the addressee, except that routine communications,
including invoices, reports and payments, shall be deemed to have been duly
delivered on the date when mailed or handed over to the duly appointed person
employed by the party or to its representative.

ARTICLE 16

GOVERNING LAW

This agreement shall be construed in accordance with the laws of the
United Kingdom.

ARTICLE 17

ARBITRATION

Any dispute between the parties hereto relating to the construction or
the performance of the terms of this agreement shall be settled by arbitration
in Geneva, Switzerland, by arbitration under the rules of conciliation and
arbitration of the International Chamber of Commerce by one or more arbitrators
appointed in accordance with such rules. The arbitration award shall be final
and without any appeal being open.

The parties shall perform the arbitration award without any exception or
reservation. Such award may be invoked before any court of competent
jurisdiction and application may be made to such court to confirm such
arbitration award by authorizing its enforcement.

ARTICLE 18

APPROVAL OF GOVERNMENTAL AUTHORITIES

SECTION 18.1. Governmental Authorizations. This agreement is subject
to the respective authorizations of the governmental authorities of the parties
concerned.

SECTION 18.2. What Seller and Buyer Shall Make Every Effort to Obtain.

Seller shall do all in its power to obtain within the shortest possible
period of time all approvals and authorizations which may be required by the
administrative authorities of Algeria, or by any other authority, deemed
necessary by Seller, to allow Seller to begin and to continue deliveries of LNG
to Buyer under the terms of this agreement, and to provide Buyer with certified
true copies of such governmental approvals and authorizations attaching
certified true copies of the rules, regulations and restrictions imposed by each
of these administrative authorities concerning such authorizations.

Buyer shall do all in its power to obtain within the shortest possible
period of time all approvals and authorizations required by the administrative
authorities of the United States of America, or deemed necessary by Buyer, to
allow it to begin and to continue to receive the LNG under the terms of this
agreement and to provide Seller with certified true copies of such governmental
approvals and authorizations attaching certified true copies of the rules,
regulations and restrictions imposed by each of the administrative authorities,
if any, concerning such approvals and authorizations. Buyer shall also do all in
its power to obtain from the administrative authorities of the United States of
America any other approval or authorization which may be required from time to
time during the term of this agreement.

Each party shall, if required by the other, help the other party by
doing all in its power to obtain such governmental authorizations and approvals.

The party having obtained said authorizations and approvals shall within the
shortest possible period of time notify the other party and shall let the other
party know as soon as possible if these governmental approvals and
authorizations are of an appropriate form and will allow it to meet the
contractual obligations contained in this agreement. When all of these
governmental approvals and authorizations deemed indispensable by Seller and
Buyer have been obtained, Seller and Buyer shall so notify each other.

If, by June 30, 1977 at the latest, Buyer and Seller do not succeed in
obtaining the necessary governmental approvals and authorizations permitting the
importation or exportation of the maximum number of complete cargoes mentioned
in Section 6.1. and for the term of this agreement, Seller or Buyer shall have
the right to terminate this agreement at any time after such date and before the
obtaining of such approvals and authorizations by notifying the other party in
writing of its intention.

SECTION 18.3. No Liability in Case of Termination. Should either
Seller or Buyer exercise the right provided in Section 18.2 (fourth
sub-paragraph ) to terminate this agreement, the party exercising such right
shall not be held liable to the other party for any damage, expense or loss
incurred by such other party as a result of the termination of this agreement.

ARTICLE 19

CONTENTS OF THE AGREEMENT

This agreement contains the entire contract and agreement entered into
between the parties and supersedes all prior agreements between them with
respect thereto. No oral promise or representation may affect it. It may be
amended only in writing and by mutual agreement.

The provisions concerning measurement procedures and methods of analysis
may be amended or supplemented by memoranda written, under mutual agreement, by
the employees of Buyer and Seller.

ARTICLE 20

REVISION OF THE CONTRACTUAL SALES PRICE

The parties agree to meet regularly to proceed with the revision of the
Contractual Sales Price defined in Article 9, above. They shall so meet for

the first time during the first quarter of the year 1980 and thereafter every
four (4) years.

The revision of the price shall consist in adapting it in a reasonable
and fair manner to the economic circumstances then prevailing on the imported
Natural Gas market and on the market for the other imported energy supplies
competing with this product in the East Coast and Gulf Coast areas of the United
States of America within the framework of long term contracts. The parties shall
take into account the individual characteristics of each of the above products
including the quality, the continuity of deliveries, the production and
transportation costs, etc.

In addition, if after the first deliveries any and/or both of the F and
F' indexes would no longer reflect the evolution of the market prices in the
East Coast and Gulf Coast areas of the United States of America of fuel oils
with similar characteristics, the parties agree to meet at any time to
determine new more representative reference indexes.

The request for such a meeting shall be in writing, and shall be
delivered 180 days in advance, and shall set forth the agenda for such meeting.

If the parties, in either case, cannot reach an agreement within 90 days
from the date of their first meeting to this effect, either party shall be
entitled to have recourse to arbitration as provided in Article 17 above.

No amendment agreed to by the parties or resulting from an arbitration
award shall become effective before it is approved by the authorities having
jurisdiction in the countries of the parties. As long as such authorization is
not obtained, the provisions of Article 9 then applicable shall remain
unchanged.

ARTICLE 21

ASSIGNMENT

Seller or Buyer may assign all or a part of the rights which it holds
under this agreement to any person who, by accepting this assignment, shall
become a party to this agreement, but no assignment shall ever release or
relieve Seller or Buyer of any of its obligations or commitments agreed to under
this agreement.
26
26

The party assigning its rights shall, before proceeding to the
assignment, obtain the prior authorization of the other party, which shall not
unreasonably refuse it, and shall deliver to it copies of the instrument
establishing the assignment after having proceeded to it.

Any assignment shall contain a provision to the effect that the assignee
agrees that all the clauses and conditions of this agreement will be binding
upon and inure to the benefit of the parties, their successors and assigns, and
shall include the express commitment of the assigning party, that is to remain
guarantor towards the other party for the due performance of the contractual
obligations of its assignee.

ARTICLE 22

NON PERFORMANCE AND TERMINATION OF THE AGREEMENT

Over and above what is provided for in Section 12.1.(b), should Seller
or Buyer default in one of its obligations under this agreement, and should this
default continue for sixty (60) days after the non-defaulting party has
requested the defaulting party to remedy this default, the non-defaulting party
shall have the right, in addition to all its other rights and recourses, to
interrupt the deliveries or receipts of LNG until this default is remedied, or
to terminate this Agreement.

ARTICLE 23

MISCELLANEOUS

SECTION 23.1. Exchange of Information. The parties shall keep each
other informed as to the progress being made in obtaining all the governmental
authorizations provided for in Sections 18.1 and 18.2 above.

Additionally, in order to facilitate the construction and operation of
the facilities, the Parties hereby agree to exchange information relating
thereto as frequently as appropriate and in any event, not less than once in
each quarter.

To the extent possible working sessions shall be held at the
construction sites of the Parties relating to the operations which are the
subject of this Contract.

SECTION 23.2. Language. This agreement is signed by the parties in
two original copies in the French language and in two original copies in the
English language.

In case of discrepancy between the French original and the English
translation, and if the parties cannot reach an agreement as to such discrepancy
in good faith and together, the text in the French language shall prevail.

Made in Boston, on April 13, 1976

DISTRIGAS CORPORATION SONATRACH

By JOHN G. L. CABOT By SLIMANE BOUGUERRA
-------------------- --------------------------
John G. L. Cabot Slimane Bouguerra
Vice President Vice President-Marketing

APPENDIX A

DEFlNITIONS

For the purpose of this agreement, to which this Appendix A is attached,
the words and terms hereafter shall have the following meanings unless their use
in the context obviously implies a different meaning:

1. NATURAL GAS (NG)

Any hydrocarbon or mixture of hydrocarbons consisting mainly of methane,
in the gaseous state, and which is extracted from underground in the natural
state, separately or in association with liquid hydrocarbons.

2. LIQUEFIED NATURAL GAS (LNG)

Natural gas at its bubbling point or below and at or about the
atmospheric pressure.

3. NORMAL CUBIC METER (Nm3) [to the third power]

Quantity of natural gas necessary to fill one ( 1 ) cubic meter of space
at a temperature of 0[degrees]C and at a pressure of 1.01325 Bar.

4. GROSS HEATING VALUE (PCS)

Amount of heat generated by burning one cubic meter of water-free gas in
the air, at a constant pressure, the air being at the same temperature
and at the same pressure as the gas, after cooling the products of the
combustion to the initial temperature of the gas and air, and after
condensation of the water produced by the combustion.

The initial conditions of the air and gas will be equal to 0[degree]C
and 1.01325 Bar.

5. THERMIE (th)

One calory ( cal ) being the amount of heat necessary to raise by 1
[degree] C the temperature of one (1) gram of an element the heat pertaining to
the mass of which is equal to that of water at 15 [degrees] C at normal
atmospheric pressure (1.01325 Bar), one thermie is equal to one thousand
kilocalories (Kcal),

29
29

one kilocalory (Kcal) being itself equal to one thousand (1,000) calories; 252
thermies being equal to one (1) million BTU (MMBTU).

All references to BTUs, calories, kilocalories, thermies shall be
considered as references to BTUs, calories, kilocalories, thermies of gross
heating value, at constant pressure.

6. BTU

BTU means one ( 1 ) British Thermal Unit (BTU) and is defined as the
amount of heat required to raise the temperature of one pound (avoirdupois )
of water from fifty-nine ( 59 ) to sixty ( 60 ) degrees Fahrenheit at the
absolute constant pressure of fourteen and six hundred and ninety six
thousandths (14.696) pounds per square inch.

7. STANDARD CUBIC FOOT (SCF)

One standard cubic foot (SCF) is the quantity of natural gas filling one
(1) cubic foot of space at a temperature of sixty (60) degrees Fahrenheit and at
the absolute pressure of fourteen and six hundred and ninety six thousandths
(14.696) pounds per square inch.

8. BAR

One bar is equal to one hundred thousand (100,000) Pascal; one Pascal is
the pressure exercised by a force of one (1) Newton per square meter; one (1)
Newton is the force which, applied to a mass of one (1) kilogram, transmits to
it an acceleration of one (1) meter per second/per second (1 m/sec2).

9. CONTRACTUAL ANNUAL QUANTITY

The contractual annual quantity means the quantity of LNG which Buyer is
under an obligation to buy and to receive and which Seller is under an
obligation to deliver to Buyer each contractual year.

10. POUND

A pound is the weight unit defined by the avoirdupois system.

11. LNG TANKER

LNG tanker means a ship in which LNG purchased and sold is transported.

12. BARREL

Barrel means forty-two (42) United States gallons (five cubic feet six
thousand one hundred and forty six ten thousandths) (5.6146 cft).

13. DAY

The period of time of 24 consecutive hours beginning at 8:00 a.m. GMT of
every calendar day and ending at 8:00 a.m. GMT of the following calendar day.

14. MONTH

The period of time beginning at 8:00 GMT the first day of a calendar
month and ending at the same hour of the first day of the following calendar
month.

APPENDIX B

Conditions 0 [Degrees] C 760 mm/Hg

COMPONENTS PCS
- ---------------------------------------------------------------------------
KCAL/MOL THERMIE/KG
----------------------------------

CH4 213.31 13.2961
C2H6 374.52 12.4549
C3H8 534.08 12.1114
nC4H10 693.49 11.9313
iC4H10 691.52 11.8974
nC5H12 853.99 11.8362
iC5H12 852.11 11.8101
- ---------------------------------------------------------------------------

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APPENDIX C

BUYER'S FACILITIES

This description will be applicable starting January 1, 1978.

1. MOORING FACILITIES

(a) Depth. The berth is dredged to maintain a depth of at least 36.4
feet ( 11.1 m) at mean low tide.

(b) Dolphins. The attached Figure C-1 shows the location and load
capacity of breasting and mooring dolphins.

(d) Length. The extent of the berth in the easterly direction is the
property line, which is 470 ft. (143 m) from the central (vapor) unloading arm.
The extent of the berth in the westerly direction is approximately 1,000 ft.
(305 m).

2. UNLOADING FACILITIES

The unloading equipment consists of five marine unloading arms, four for
liquid and one for vapor. Each connection is a 12-inch ASA 150-RF flat-faced
flange. The plan and elevation of the arms are shown in Figure C-2.

The four liquid arms connect to a 24-inch unloading line that leads to
two storage tanks, with nominal capacities of 59,000 m3 and 95,000 m3.

The vapor arm is connected to a 12-inch vapor return line leading from
the tanks. The line is equipped to return sufficient vapor to maintain the
ship's connecting flange at 1080 millibar absolute pressure.

3. AUXILIARY FACILITIES

On the loading arm platform (elevation 53 ft. 9 in. in Figure C-2) is a
connection for loading liquid nitrogen and a bonding cable for electrical
grounding.

An "international flange" connection for supplying supplementary
firewater is located on the dock approximately 40 m east of the cargo

manifold. A fresh water connection is located near the gate at the dock roadway
at the head of the pier. The locations of the water connections are shown on
Figure C-1.

4. COMMUNICATION

The focal point for communication between the ship and the Buyer's
facilities shall be the ship's cargo control room. Buyer shall station a
representative in the control room who is duly authorized and fully competent
to relay all requests, replies, and statements between the ship's cargo officer
and Buyer's Supervisor-in-Charge. To facilitate efficient communication, Buyer
shall provide its representative with at least two independent means of
communication with shore.

FIGURE C-1:

DATUM REFERENCE DIAGRAM FOR DOCKING FACILITIES

FIGURE C-2:

Low and high water marks at the Everett Marine Terminal
docking facilities, together with layout of chicksan
arm unloading mechanism.

APPENDIX D

SPECIFICATION OF LNG SHIP

Presented below are the specifications to which any LNG Tanker must conform in
order to comply with Section 4.4. In the absence of Buyer's prior approval, any
delay in unloading caused by lack of conformance to these specifications will
be construed under Section 11.3(b) as being due to "inability of the LNG
Tanker's facilities to discharge cargo within the time allowed."

1. The maximum cargo capacity shall not exceed 125,000 m3 by
more than three percent.

2. The ship shall be capable of discharging from the port side,
as required by the U.S. Coast Guard.

3. The dimensions of the ship shall be compatible with Buyer's
facilities as described in Appendix C. Specifically, the forwardmost
projection of the bow shall not exceed the berth limit given in Section
1(d) of Appendix C.

4. The ship shall be equipped with a safe and convenient
accommodation ladder (stairway type) mounted to provide access from one
of the dock platforms described in Section 1(c) of Appendix C.

5. The ship's port side cargo manifold shall consist of two or
four liquid connections and no more than two vapor connections. Upon
arrival at the berth, the connections provided shall be 12-inch ASA
150-RF, flat-faced flanges; the flanges will be in a clean, un-blinded
condition ready to be connected to the marine arms. The forward to aft
arrangement of the flanges shall be one of the following (L-liquid;
V-vapor):

(a) L,L,V,V,L,L

(b) L,L,V,L,L

For arrangements (a) or (b), the separation distance between the centers
of the outermost two liquid flanges shall be no less than 10.3 m (33.8 ft.) and
no greater than 15.2 m (49.9 ft.)

The flange faces shall reside in a common plane which is
perpendicular to the water surface and parallel to the ship's
longitudinal

axis. The flange centers shall reside in a line which is parallel to
the water surface. In a transverse section of the ship through the
manifold area, the above line is represented by a point; this
point shall be located within the reach envelope shown in Figure D-1
under all conditions of draft. In addition, no railing platform, or
other part of the ship's structure shall occupy any volume of space
through which the arms must pass to reach the flanges.

6. In addition to its full pumping capability, the ship shall be
able to discharge LNG in two smaller ranges of flowrate.

(a) 30 to 50 m3/H (for cooldown of the loading arms).

(b) 170 to 230 m3/H (for cooldown of the unloading line to the
tanks).

7. The ship shall provide efficient means to drain and purge the
loading arms and manifold piping. For this purpose, dry gaseous
nitrogen shall be made available and connected at the time that pumping
is finished. This nitrogen shall be available at a nominal rate of 100
Kg/H at a gauge pressure of 3 Bar.

8. The ship shall have means for independent control of its
cargo tank pressures at all times. Specifically, with the exception of
an emergency, the ship shall have no need to send vapor ashore during
any portion of its visit.

9. The focal point for communication between the ship and the
Buyer's facilities shall be the ship's cargo control room. From the
start of unloading until the completion of all drain and purge
operations, the ship shall station an officer who speaks in English to
be continuously present in the control room. This officer shall be
fully competent and duly authorized to conduct all phases of the
unloading operation; he shall not leave the control room for any
purpose whatsoever unless relieved by an officer who is equivalent
in authority, competence, and fluency in English. For the purposes of
this requirement, the start of unloading is the completion of
connecting the arms or the completion of gauging the cargo tanks,
whichever occurs later; any delay after this point caused by absence
of the aforementioned officer from the cargo control room shall not
count as authorized laytime.

FIGURE D-1:

Diagram of " Reach envelope" in which a ship must be located
for purposes of unloading liquefied natural gas at the
Everett Marine Terminal.

ANNEX E
-------

Demurrage in U.S. Dollars by tanker size.

AMENDMENT NO. 3 TO THE
AGREEMENT FOR THE SALE AND PURCHASE OF
LIQUEFIED NATURAL GAS
OF APRIL 13, 1976

Between:

L'Entreprise Nationale SONATRACH, with registered office at 46 Boulevard
Mohamed V, Algiers, Algeria, hereinafter referred to as the "Seller",
represented by M. Faid, Directeur, Division Gaz, authorized to execute this
Amendment, on the one hand,

and

Distrigas Corporation, a corporation organized and existing in the
United States of America, under the laws of the State of Delaware, with its
principal office at 2 Oliver Street, Boston, Massachusetts, hereinafter referred
to as the "Buyer", represented by its Vice President, R. Gordon Shearer,
authorized to execute this Amendment, on the other hand,

WITNESSETH:

Whereas, Seller and Buyer executed an Agreement for the Sale and
Purchase of Liquefied Natural Gas on April 13, 1976 (the "Agreement");

Whereas, to reflect significant changes in United States regulatory
policy and regulations and United States natural gas markets, to introduce LNG
tankers into the trade on an F.o.b. basis, to make LNG available at competitive
prices, and to permit Seller to assign its rights, obligations and commitments
under the Agreement, as amended, to Sonatrading Amsterdam B.V., a wholly-owned
subsidiary of Seller incorporated in The Netherlands with principal office at
Kantoorgebouw 'Sloterstyn' 5C, Sloterkade 133, 1058 HM Amsterdam, The
Netherlands ("Sonatrading"), Seller and Buyer now propose to make certain
modifications to the Agreement and an assignment of the Agreement, as amended,
by means of this Amendment No. 3. It is agreed as follows:

- 2 -

Article 2 of the Agreement is deleted, and the second paragraph of
Article 3 of the Agreement is amended and restated as follows:

Seller represents that the LNG which is to be sold under the provisions
of this agreement will be produced by liquefaction units at Seller's
liquefaction plants in Algeria.

II.

Article 4 of the Agreement is amended and restated as follows:

TANKERS; DELIVERY; PASSAGE OF TITLE

Section 4.1. TANKERS. Buyer shall cause the LNG purchased and sold
hereunder to be shipped from Algeria in LNG tankers having a Gross
Cargo Capacity, as defined in the Transportation Agreement dated the
date hereof between Seller as transporter and Buyer as shipper (the
"Transportation Agreement"), of between 30,000 and 135,000 cubic meters,
for carriage to and delivery at the Terminalling Facility. Such LNG
tankers shall have specifications and characteristics compatible with
the ports of loading and discharging. Seller shall furnish or cause to
be furnished to Buyer, and Buyer shall accept, on and subject to the
terms and conditions of the Transportation Agreement, at least one of
such LNG tankers in use hereunder at any given time. If a second LNG
tanker is, at any given time, required to lift LNG which is to be
purchased and sold hereunder, Buyer shall, before entering into any
arrangements with any third party for the provision of such additional
LNG tanker, offer to Seller first refusal of the right to provide the
same on terms and conditions not less favorable to Buyer than would be
the terms and conditions of such arrangements. Unless such offer is
accepted by Seller and such acceptance communicated to Buyer within 48
hours of such offer being made it shall be deemed to have been rejected
by Seller.

Section 4.2. DELIVERY POINT, PASSAGE OF TITLE AND RISK OF LOSS. The
delivery point is the point at which the flange coupling of Seller's
loading line joins the flange coupling of the LNG loading manifold

- 3 -

on board any LNG Tanker at Arzew or other safe port in Algeria. Title
and risk of loss shall pass to Buyer at the delivery point.

Sections 4.3, 4.4 and 4.5 of the Agreement are deleted.

III.

In Article 5, the words "Buyer's dock" are changed to "loading port,"
the word "negligent" is inserted between "or" and "act," and after the word
"services" shall be added the words "and in no case shall Buyer or its
affiliates be deemed to be employees, representatives, contractors or suppliers
of Seller, and vice versa."

IV.

Article 6 of the Agreement is amended and restated as follows:

QUANTITIES AND DELIVERIES

Section 6.1. ANNUAL QUANTITIES. Subject to the provisions of this
Article 6, from 15 September, 1988 Seller shall cause Sonatrading to
sell to Buyer and Buyer shall purchase from Sonatrading F.o.b.
Algerian port 51 million MMBtu of LNG, corresponding to 17 full cargoes
each of approximately 125,000 cubic meters in each Contractual Year and
pro rata for any part of a Contractual Year.

Section 6.2. UNDERTAKING OF BUYER AND AFFILIATES. Throughout the term
of this agreement, Buyer undertakes that it and any affiliate of Buyer
selling LNG purchased by Buyer hereunder or regasified LNG derived
therefrom shall diligently seek to obtain from their customers and
potential customers commitments (capable of being satisfied by such LNG
or regasified LNG) on terms and conditions (including price) which in
Buyer's reasonable commercial judgment are the most favorable available
to Buyer and its affiliates in the prevailing market and under the
prevailing circumstances, for the purchase by such customers and
potential customers from Buyer or any such affiliate of Buyer of
LNG for delivery in the U.S.A., or of Natural Gas derived from the
regasification of LNG and emanating

43
- 4 -

2 from or delivered at the Tailgate. If and to the extent that Buyer
proposes to seek delivery of any quantities of LNG at the Terminalling
Facility in excess of the quantities specified in Section 6.3(a) with a view
to meeting any such commitments it will, subject to and on the terms hereof
and up to the quantities specified in Section 6.1, offer to purchase those
quantities of LNG from Sonatrading hereunder at the price computed in
accordance with Article 9 hereof. Unless such offer is accepted by Seller
and such acceptance communicated to Buyer within 240 hours of such offer
being communicated it shall be deemed to have been rejected by Seller.

Section 6.3. Minimum Quantities; Make-up.
---------------------------

(a) Seller shall cause Sonatrading to sell and load hereunder, and
Buyer shall buy from Sonatrading, as part of the quantities specified
in Section 6.1, minimum quantities of LNG totalling in the aggregate
approximately 27 million MMBtu (corresponding to nine full cargoes of
an LNG tanker or LNG tankers each of a capacity of approximately
125,000 cubic meters) during each Contractual Year and pro rata for any
part of a Contractual Year. Deliveries of such quantities hereunder
shall be scheduled by agreement under Section 6.4 hereof. Buyer shall
make payment to Sonatrading in respect of each cargo forming part of
such quantities at the price computed in accordance with Article 9
hereof; PROVIDED THAT if the Reference Price on the tenth day preceding
the date such cargo is scheduled for loading pursuant to Section 6.4
shall be below the prevailing Minimum Price Buyer shall not be
obligated under this Section 6.3(a) to buy, and Seller shall not be
obligated under this Section 6.3(a) to sell or load such cargo, but
Buyer shall instead have the option (exercisable by notice delivered by
telex or other prompt means not later than 10 days before such
scheduled date) to purchase at the Minimum Price, and to call for
delivery of, such cargo as scheduled. To the extent that the shipping
schedule involves or would involve loading of any of the nine cargoes
constituting minimum quantities after March 15 of such Contractual
Year, the price for any cargoes so loaded after that date shall, at
either party's request, be a price to be agreed between the parties.
Accordingly, Seller and Buyer will attempt in that event to agree to
alternative pricing terms. If Seller and Buyer
44
- 5 -

do not agree to pricing terms for any of such cargoes then both Seller
and Buyer shall be excused from any obligation to sell and deliver or
receive and pay for the same.

(b) Buyer's obligations in respect of all quantities in excess of the
above minimum quantities shall be governed by Section 6.2 hereof. To
the extent that the aggregate quantities of LNG purchased by Buyer for
delivery in any one Contractual Year shall at the end of such
Contractual Year be less than 51 million MMBtu, Buyer shall have the
right in respect of the next succeeding Contractual Year(s) during this
Agreement to increase the quantity of 51 million MMBtu in Section 6.1
hereof until the total of such increases shall equal the amount by which
such quantities are less than 51 million MMBtu. If at the end of
the term of this agreement specified in Article 14 any part of such
difference shall still not have been shipped hereunder, Buyer shall have
the right to extend such term for a period of five (5) years or until
such difference shall have been delivered at the delivery point in full,
whichever shall first occur, but Section 6.3(a) shall not apply during
any such extended term, and in no event shall Seller be obligated to
deliver more than 51 million MMBtu of LNG in any one Contractual Year
during this Agreement as so extended or otherwise.

Section 6.4. SCHEDULE OF LOADINGS. Seller and Buyer agree that Buyer
and Sonatrading shall consult together during a Contractual Year as may
be reasonably required, and shall in particular meet each February and
August to establish a schedule of projected loadings hereunder month by
month for the six-month period commencing the following March 15th and
September 15th, respectively.

The nine cargoes constituting minimum quantities pursuant to
Section 6.3(a), shall be scheduled for loading, to the extent reasonably
practicable, at approximately 20 day intervals beginning September 15.

Such schedule shall be updated from time to time to the extent
reasonably practicable.

45
- 6 -

Ten (10) days prior to the beginning of each calendar month,
Seller shall cause Sonatrading to confirm by telex to Buyer the schedule
of deliveries for such month.

Seller shall ensure that Buyer shall be promptly notified by
telex of any loading of LNG under this agreement and of the departure
of such cargo and the estimated time of arrival at the Terminalling
Facility.

Section 6.5. PLANT INSPECTIONS AND OVERHAULS. Seller and Buyer shall
provide that annual inspections and overhauls of the plants and
facilities necessary to carry out the operation contemplated by this
agreement shall take place preferably during the summer, or at any such
other suitable time of the year selected by mutual agreement as will not
entail a decrease in the annual quantity of LNG the delivery of which is
provided for by this agreement. Seller and Buyer shall notify each
other of schedules of such annual inspections and overhauls ninety (90)
days prior to their commencement.

Sections 8.1 and 8.2 of the Agreement are amended and restated as
follows:

Section 8.1. GAUGING. The quantities of LNG delivered under this
agreement shall be measured in metric units by gauging of the liquid in
the ship's tanks immediately prior to and after loading.

The gauging at the delivery point and the calculations relating thereto
shall be made by Seller or its designated representative, with Buyer
having the right to be present.

Each party shall send or cause to be sent to the other party a certified
copy of the gauging standards for each tank of each LNG tanker being
furnished by such party, in metric units approved by the Departments of
Instruments and Measurements of Algiers - Paris or of the U.S. Bureau of
Standards in Washington (D.C.), as well as correction charts (list,
trim, tanks' contraction, etc.). Such standards and charts shall be used
throughout the

- 7 -

term of this agreement, except in the case of a physical change in the
tanks, in which case new standards and charts shall be used. LNG
level measuring devices shall be approved by both Seller and Buyer.
Each tank shall be equipped with two level-measuring devices of
different types.

Section 8.2 DETERMINATION OF DENSITY. The density of the LNG shall be
determined by a calculation from the molecular composition determined in
accordance with Section 8.4 hereof, for the average temperature defined
in Section 8.3 hereof.

The method of calculation shall be the method known as the revised
Klosek and McKinley Model, as set forth in NBS Technical Note 1030,
published by the U.S. Department of Commerce in December 1980.

In the first sentence of the first paragraph of section 8.4 the words
"by Seller" are added after the word "taken", and the word "loading" is
substituted for the word "discharging".

In the second sentence of the second paragraph of Section 8.4 the word
"Buyer" is substituted for the word "Seller".

In the third paragraph of Section 8.4 the word "Buyer" is substituted
for the word "Seller".

In the first sentence of Section 8.5 of the Agreement, the phrase
"0[degree]C at a pressure of 760 mm/Hg" is deleted and the following is
substituted in its place: "O [Degrees] C at a pressure of 1.01325 BAR."

In Section 8.6 of the Agreement the words "loaded on" are substituted
for the words "delivered by", thereafter the word "loaded" is substituted for
the word "delivered" in two places, and the words "LNG loaded" are substituted
for the words "LNG discharged".

The first two paragraphs of Section 8.7 are amended and restated as
follows:

The gauging equipment in the ship's tanks shall be provided, operated
and maintained by the Buyer at its expense. The equipment and material
utilized for the determination and tests of the quality and density of
the product shall be provided, operated and maintained by Seller at its
expense.

- 8 -

Any measurement and any calculation relating to the determination of
the quality and density of the LNG shall be made by Seller in the
presence of a representative of Buyer if Buyer so wishes.

In the second sentence of the first paragraph of Section 8.8 the words
"with both parties having the right to be present" are substituted for the words
"if the two parties are present".

VI.

Article 9 of the Agreement is amended and restated as follows:

PRICE

Section 9.1 F.O.B. TERMS. For any month during which there shall be
completed any loading of any LNG tanker hereunder the price F.o.b.
Algerian port in U.S. Dollars per MMBtu of such LNG so loaded shall be
the higher of the Reference Price (if any), the Minimum Price, and a
price ("P") computed as follows:

(i) If SP for such month is less than $5.00:

P = 0.6324 x SP

(ii) If SP for such month is equal to or greater than $5.00:

P = (0.6532 x SP) - 0.0923

SP, for any month, shall be the amount obtained by ascertaining

(a) the total number of MMBtus of LNG or regasified LNG
derived from LNG purchased hereunder and delivered to customers
of Buyer or of any affiliate of Buyer during such month; and

(b) the total proceeds receivable by Buyer or any affiliate of
Buyer from such deliveries less any sums paid by Buyer or
such affiliate during such month to fiscal authorities in the
United States in respect of any import duty, tax or other
imposition not levied at the date

- 9 -

of execution of Amendment No. 3 to this agreement but
applicable to quantities of LNG imported under this agreement;

and by then dividing the aggregate of the amounts calculated under (b)
above by the aggregate of the amounts calculated under (a) above.
For any period less than a month, or for any month during which no vapor
or liquid is delivered, SP shall be fixed by agreement of Buyer and
Seller.

Buyer shall throughout this Agreement diligently seek to maximize the
proceeds under (b) above by negotiating or causing to be negotiated
with such customers terms and conditions (including price) which in
Buyer's reasonable commercial judgment are the most favorable available
to Buyer in the prevailing market and in the prevailing circumstances.

VII.

In the first paragraph of Article 10 the words "without prejudice to
Section 9.1 hereof" are added after the word "Buyer".

In the second paragraph of Article 10, the words "other states and"
shall be deleted and the words "Algeria, and, where the LNG tanker is furnished
under the Transportation Agreement," shall be substituted therefor.

VIII.

Article 11 of the Agreement is amended and restated as follows:

PORT FACILITIES; LOADING

Section 11.1. PORT AND LOADING FACILITIES. (a) Port Facilities.
Seller shall make available, or cause to be made available, safe port
facilities for the loading of LNG purchased hereunder capable of
receiving LNG tankers of the following maximum dimensions:

- 10 -

Overall Length..........290.00 meters
Width....................43.70 meters
Draft at full capacity...11.30 meters

Port facilities shall be such as to permit all loading and maneuvers to
be carried out in complete safety within a reasonable time.

(b) Berthing and Loading Facilities. Seller shall make available or
cause to be made available to Buyer at the port of loading in Algeria
berthing and loading facilities including:

(i) mooring equipment;

(ii) lighting sufficient to permit docking maneuvers by day or
by night in complete safety, to the extent permitted by
the port authorities;

(iii) pipelines to ensure normal stocking of the LNG tanker
with bunker fuel;

(iv) loading arms, pipes and other appropriate facilities
permitting the loading of LNG at the average rate of ten
thousand m3/hour;

(v) a vapor return line from the LNG tanker to shore
facilities having a diameter sufficient to maintain
appropriate operating pressure in the tanks of the
LNG tanker and in the storage reservoirs; and

(vi) a liquid nitrogen loading facility compatible with the
LNG tanker.

The facilities described in this Section 11.1(b) shall be provided,
operated and maintained at no cost to Buyer.

Section 11.2. Safety. Loading of LNG shall be carried out in strict
conformity with all applicable safety and other similar regulations.

Section 11.3. Conditions of Loading. Buyer shall give written
notice to Seller of the estimated date and hour of arrival at the port
of loading of any LNG tanker providing maritime transportation

50
- ll -

hereunder as well as of the estimated quantity of LNG which is to be
loaded. Buyer shall send or cause to be sent to Seller the following
written notices:

(i) a first designation notice shall be given upon departure
from last port of discharge or (if later) at least
ninety-six (96) hours prior to the estimated time of
arrival, and shall contain an estimated time of arrival;

(ii) a second designation notice shall be given so as to arrive
seventy-two (72) hours prior to the estimated time of
arrival;

(iii) a third designation notice shall be given so as to arrive
twenty-four (24) hours prior to the estimated time of
arrival; and

(iv) At the time the LNG tanker arrives at the sea buoy or
designated anchorage at the loading port, the Master shall
give written notice of such arrival to Seller or its
authorized representative at any time of the day or night.

As soon as the LNG tanker is berthed alongside the pier and prepared to
load its cargo, the Master of the LNG tanker shall give written notice
of ready to receive to Seller or to its representative at any time of
the day or night. Notwithstanding the foregoing, where the LNG tanker
is furnished under the Transportation Agreement, all notices required to
be given under this Section 11.3 shall be the responsibility of Seller.
Provided that the bottom temperature of the tanks of the LNG tanker is
not higher than minus one hundred and forty-five degrees centigrade,
Seller shall then take all appropriate measures within its reasonable
control to permit the loading of the LNG tanker as quickly as is safely
possible.

Authorized laytime for loading any LNG tanker under this Agreement shall
commence at the same time and shall run for the same period as
authorized laytime at the loading port under the Transportation
Agreement and demurrage shall be computed for the same period at the
same rate and shall be payable in the same manner as demurrage at the
loading port under the Transportation Agreement.

- 12 -

Section 11.4. Cooldown; Heel and Gas Trials.
-----------------------------

(a) Seller shall make available or cause to be made available LNG for
gas trials and cooldown for any LNG tanker transporting LNG purchased
hereunder which has a bottom temperature in its tanks prior to loading
higher than minus one hundred and forty-five degrees centigrade.
Payment for the LNG so supplied shall be the responsibility of Buyer,
except as provided below. Buyer shall pay to Sonatrading for the LNG so
supplied (for which Buyer bears such payment responsibility) the price
in U.S. Dollars per MMBtu provided in Article 9 hereof for LNG loaded
during the month of such supply.

(b) Upon discharge of any LNG tanker transporting LNG in connection
herewith, which is scheduled to load LNG at the loading port within
thirty (30) days following completion of such discharge, Buyer shall
retain or cause to be retained aboard that LNG tanker (if returning
forthwith in ballast to the loading port to load further cargo
hereunder) an amount of LNG sufficient to permit such tanker to maintain
a temperature no higher than minus one hundred and forty-five degrees
centigrade at the bottom of the tanks for a period of at least
twenty-four (24) consecutive hours after its arrival at the loading port
or, in the case of an LNG tanker provided under Transportation
Agreement, after the time (if earlier) when such arrival would have
occurred had it proceeded to the loading port with due dispatch. The
supply of LNG necessitated by a failure of Buyer so to cause sufficient
LNG to be retained aboard shall be the responsibility of and shall be
paid for by, Buyer but at the request of Buyer such LNG shall be
supplied by Seller. The price to be paid by Buyer to Seller for LNG for
which Buyer is obligated to pay Seller under this Section 11.4 shall be
the price in U.S. Dollars per MMBtu provided in Article 9 hereof.

(c) If any LNG tanker aboard which LNG has been so retained does not
load within such twenty-four (24)-hour period for any cause attributable
solely to any matter within the reasonable control of Seller or the
owner or operator of any LNG tanker furnishing services under the
Transportation Agreement, the cost of additional LNG thereby rendered
necessary and utilized for cooldown of such tanker shall be the
responsibility of Seller.

- 13 -

(d) The quantities of LNG purchased pursuant to this Section 11.4 by
Buyer shall not be included in the quantities covered by Article 6 of
this agreement.

IX.

Section 12.1 of the Agreement is hereby amended and restated as follows:

Section 12.1. Invoicing and Payment.
---------------------

(a) SELLER'S DOCUMENTS; PAYMENTS ON ACCOUNT. Not less than 7 days in
advance of each month in the course of which Buyer anticipates that
there will be LNG deliveries hereunder, Buyer shall notify Sonatrading
by telex of Buyer's best good faith estimate of the price P under
Article 9 for that month. Promptly following the completion of each
loading of LNG purchased hereunder Seller shall cause Sonatrading to
send to Buyer in respect thereof a telex substantially in the form of
Annex C hereto. Sonatrading shall at the same time cause to be
dispatched to Buyer (a) the data and documents indicating the quantity
in MMBtu's of LNG so loaded (including the measurements and calculations
under Article 8 hereof); (b) where the LNG is loaded under the
Transportation Agreement, a cargo receipt substantially in the form of
Annex A to that Agreement in respect of such LNG; and (c) a provisional
invoice (which may be sent by telex or telecopier) for the amount
calculated pursuant to the final paragraph of this Section 12.1(a).
Buyer shall make to Sonatrading a payment on account for such LNG of
that amount, by wire transfer to Sonatrading's account in a United
States bank specified by Sonatrading, on or before the later of (i) the
fifteenth day following the completion of each loading or (ii) the
seventh day following the date of receipt by Buyer of the documents
under (a), (b) and (c) above (the "Due Date"), PROVIDED that Buyer shall
at all times have outstanding a standby, revolving, irrevocable
commitment to Sonatrading of a first-class bank in the United States in
form and substance reasonably satisfactory to Sonatrading to pay
Sonatrading on the Due Date an amount of U.S. dollars equal to each such
payment on account together with any interest accrued thereon against
presentation of written advice by Sonatrading that

53
- 14 -

there has been a failure by Buyer to pay the same when required by this
agreement to such account by such Due Date. In the event that it shall
become unduly onerous for Buyer to have such a bank commitment
outstanding, Buyer may so inform Sonatrading by notice. In such event,
Buyer shall not be obligated to have such a commitment outstanding in
respect of any loadings occurring after the date on which such notice
was given and shall make such payment on account for each loading by
wire transfer to the aforementioned account not later than the seventh
day following the date of receipt by Buyer of the documents under (a),
(b) and (c) above.

The amount so payable on account shall be equal to:

(i) the product of (a) the quantity of LNG in MMBtus loaded
as specified in the aforementioned cargo receipt or (if
not so specified) as determined in accordance with
Article 8 hereunder; and (b) the price as estimated by
Buyer and notified to Sonatrading in accordance with
this Section 12.1(a) for the month in which such loading
was completed, plus or minus

(ii) any amount required to be added to or subtracted from the
foregoing product under Section 12.1(c).

(b) INVOICES. Within seven days following receipt of the monthly
statement furnished by Buyer under Section 12.1(d), Sonatrading shall
prepare and send to Buyer an invoice in U.S. Dollars for the aggregate
quantity of LNG purchased hereunder the loading of which was completed
during the month covered by such monthly statement. The amount invoiced
shall be equal to the product of (i) the price per MMBtu under Article 9
for such month as calculated in the monthly statement prepared under
Section 12.1(d), and (ii) such aggregate quantity in MMBtus as
determined pursuant to Section 12.1(a) for such month less the payments
on account received by Sonatrading under Section 12.1(a) with respect to
the shipments of LNG covered by such invoice. Any such invoice shall
take into account any amount owed by either Sonatrading or Buyer under
Section 11.

54
- 15 -

(c) PAYMENT. In the event that the invoice sent by Sonatrading
under Section 12.1(b) shows a net amount owed to Buyer, such amount
shall be subtracted from the product referred to in Section 12.1(a)(i)
in computing the amount or amounts payable by Buyer under Section
12.1(a) in respect of the shipment or shipments next following the date
of receipt by Buyer of such invoice, in such a manner as to amortize as
rapidly as possible the amount of such credit. In the event that the
invoice shows a net amount owed to Sonatrading, all or any part of such
amount remaining unpaid shall be added to the product referred to in
Section 12.1(a)(i) in computing the amount payable by Buyer under
Section 12.1(a) with respect to the shipment next following the date of
receipt by Buyer of such invoice. If the amount shown in any invoice as
a net amount owed to Buyer or to Sonatrading has not been paid in full
as provided in this Section 12.1(c) within thirty (30) days following
the date of receipt by Buyer of such invoice, then the party owing that
net amount remaining unpaid shall forthwith pay the same by wire
transfer to such account at a United States bank as the other party
shall have specified by notice. If and for so long as Buyer shall be in
default in respect of any obligation upon Buyer under this Article 12 to
make payment for LNG, Sonatrading shall be under no obligation to make
any further shipment(s) of LNG to Buyer hereunder. Upon the amount of
any payment under this Article 12 which is in default the defaulting
party shall pay interest at a rate which shall equal 1 percent per annum
over LIBOR from the last date due until the date of payment.

(d) MONTHLY STATEMENTS. No later than the eighteenth day following the
end of each month, Buyer shall prepare and deliver to Sonatrading a
statement showing the price under Article 9 for such month and including
in reasonable detail the basis for the calculation thereof. Such
statement shall include in particular the aggregate quantities of
deliveries of LNG or regasified LNG derived from LNG purchased hereunder
effected in such month, the customers concerned, and the total proceeds
receivable from such deliveries to customers.

- 16 -

(e) ACCESS TO BOOKS AND RECORDS. Sonatrading and its representatives
shall be entitled from time to time at their expense to inspect Buyer's
books and records upon reasonable notice during normal working hours for
the purpose of verifying sales and deliveries to customers and computing
the amounts payable under this agreement.

Article 13 of the Agreement is amended and restated as follows:

FORCE MAJEURE, ETC.

13.1. DEFINITION. "Force Majeure" means any event or condition,
whether affecting Buyer, Seller or any other person, which has
prevented or delayed or may reasonably be expected to prevent or delay
any party hereto from performing hereunder in whole or in part
(including but not limited to performing transportation to, storage at
and redelivery from the Terminalling Facility), if such event or
condition is beyond the reasonable or prudent control, forecasting or
planning, and not the result of willful or negligent action or a lack of
reasonable diligence, of whichever party hereto is relying thereon (the
"Non-Performing Party") as justification for such nonperformance. The
foregoing provisions shall not be construed to require that the
Non-Performing Party observe a higher standard of conduct than that
required by the usual and customary standards of the industry, as a
condition to claiming the existence of Force Majeure. Such events or
conditions shall include but shall not be limited to circumstances of
the following kind:

(a) (i) an act of God or government, epidemic, landslide,
lightning, earthquake, fire, explosion, accident, storm,
flood or similar occurrence, an act of the public enemy,
war, blockade, insurrection, riot, civil disturbance or
similar occurrence, or (ii) a strike, lockout, or
similar industrial or labor action;

56
- 17 -

(b) the failure to obtain, or suspension, termination,
adverse modification, interruption or failure of renewal
of any permit, license, consent, authorization or
approval, including any approval contemplated by
Article 18 hereof; and

(c) circumstances preventing Seller, Sonatrading, Buyer or
any affiliate of Buyer from supplying LNG or regasified
LNG, as the case may be, including serious accidental
damage to operations or equipment affecting the Natural
Gas production facilities in the field, transportation,
treatment, liquefaction, storage, and loading operations
in Algeria; transportation by LNG tankers; and unloading,
storage, regasification and transportation in the United
States.

13.2. EXCUSE OF PERFORMANCE. Each party hereto shall be excused for
its failure or delay in performance hereunder to the extent that such
failure or delay is caused by Force Majeure. Notwithstanding the
foregoing, Buyer shall in any event make payment in accordance with the
terms hereof for all LNG delivered hereunder as to which the risk has
passed to Buyer.

13.3. NOTICE. As soon as practicable following the occurrence of Force
Majeure the party affected thereby shall give notice to the other
party by the most rapid means available, describing such Force Majeure
and stating such party's best estimate of the duration thereof and the
effect thereof on the performance of this agreement and shall keep such
other party reasonably advised as to the status of such Force Majeure
and the progress of such party's efforts to overcome the same.

13.4. RESUMPTION OF PERFORMANCE. In the event performance hereunder
shall be prevented or delayed in whole or in part by Force Majeure,
the parties shall take all reasonable and appropriate measures to bring
about conditions permitting the resumption

- 18 -

of the normal performance of this agreement as soon as possible. In the
event that performance hereunder shall be substantially prevented
by Force Majeure for more than 24 consecutive months either party may,
without prejudice to all other rights arising out of such circumstances,
terminate this agreement by 30 days' written notice to the other.

13.5. REDUCTION OR CESSATION OF DELIVERIES. If in respect of any
transaction between Buyer or any affiliate of Buyer, and any customer,
for the sale and purchase of regasified LNG, or of LNG, in relation
to which Seller is obligated to sell LNG to Buyer hereunder, there shall
arise:

(a) a failure or refusal of such customer to take delivery of
or to make payment in full for any such regasified LNG or any such LNG;

(b) a bankruptcy or insolvency of any such customer; or

(c) a reasonable likelihood, in Buyer's good faith judgment,
that the occurrence of one of the foregoing events is imminent;

Buyer or any such affiliate of Buyer may by reason thereof reduce or stop
deliveries to such customer of regasified LNG, or of LNG, and if in
consequence, so long as such deliveries shall not be made, Buyer fails to
accept or lift all or any of such quantities of LNG hereunder as would have
been required to effect such deliveries, Buyer shall have no liability
whatsoever to Seller or Sonatrading in respect of such failure exceeding 60% of
the amount by which the value of all monies or other consideration recovered
from such customer by way of damages or otherwise in respect of any of the
matters set forth under (a), (b), or (c) above exceeds the costs (including,
without limitation, legal fees and expenses) disbursed by Buyer in effecting
such recovery.

XI.

The second sentence of Article 14 of the Agreement is amended and
restated as follows:

"Subject to Section 6.4(b), this agreement shall remain in effect for 15
years from 1 October, 1988."

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The last sentence of Article 14 of the Agreement is deleted.

XII.

Article 15 is amended and restated as follows:

NOTICES

Each notice, request, demand or other communication hereunder shall be
in writing and shall be deemed to have been duly given when delivered by hand to
an authorised employee or a duly appointed representative of the addressee
party; or when received by such party after being sent by mail; or one day after
it has been sent to such party by telex or telecopier (with receipt confirmed),
provided a copy is also sent by mail addressed as follows (or to such other
address as a party may designate by notice to the other):

(a) If to Distrigas:

Distrigas Corporation,
2 Oliver Street,
Boston, Massachusetts,
U.S.A.
Telecopier: (617) 439-6690
Telex: 671-6307

(b) If to SONATRACH:

Sonatrach,
46, Boulevard Mohamed V,
Algiers,
ALGERIA.
Telex: 67123
67124
67125

Sonatrading Amsterdam B.V.
Kantoorgebouw "Sloterstyn" No. 5C
Sloterkade 133
1058 HM Amsterdam West,
The Netherlands
Telex: 1074B SKADE (temporary number)
59

- 20 -

XIII.

In Article 16 of the Agreement, the words "the United Kingdom" are
deleted and the word "England" is substituted therefor.

XIV.

The last two paragraphs of Section 18.2 of the Agreement are deleted and
the following is substituted therefor:

Seller's and Buyer's obligations hereunder shall be subject to
obtaining and maintaining all approvals of authorities required for
performance, including any such approvals required to enable Buyer or an
affiliate of Buyer to purchase, import, sell or resell LNG the subject
of this Agreement or regasified LNG derived therefrom. Seller shall do
all in its power to maintain all such approvals of Algerian authorities,
and Buyer shall do all in its power to maintain all such approvals of
United States authorities. Each party shall notify the other party when
it has received any such approval. Each party shall, if requested by the
other, help the other party by doing all in its power to obtain and
maintain such governmental approvals as may be required from time to
time for performance.

Section 18.3 of the Agreement is deleted.

XV.

In the heading of ARTICLE 20, the words "REVISION OF THE CONTRACTUAL
SALES PRICE" are changed to "REVISION OF REFERENCE PRICE FORMULA and of THE
MINIMUM PRICE."

The first three paragraphs of Article 20 are amended and restated as
follows:

The parties may meet to revise the formula contained in the definition
of the Reference Price in Appendix A hereto every three (3) years
and/or to revise the Minimum Price every five (5) years, during the term
of this agreement or any extension thereof.

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Any such revision of the Reference Price Formula or of the Minimum Price
shall be effected by adaptation of the said formula or of the said
Minimum Price in a reasonable and fair manner (having regard, inter
alia, to the terms of Article 9), to the economic circumstances then
prevailing in the natural gas markets for the East Coast of the United
States of America.

Among the factors to be considered in determining the appropriateness of
any adaptation shall be Buyer's success in obtaining commitments from
time to time during the term of this Agreement (capable of being
satisfied by LNG purchased by Buyer hereunder or by regasified LNG
derived from LNG purchased by Buyer hereunder), on terms and conditions
(including price and date of contract and nature of purchase commitment)
which in Buyer's reasonable commercial judgment are the most favorable
to Buyer's and Seller's LNG trade in the then prevailing markets and
under the then prevailing circumstances.

XVI.

Article 22 of The Agreement is amended and restated as follows:

ARTICLE 22

COUNTERPARTS

This agreement may be executed in any number of counterparts and
each of such counterparts shall be deemed an original. All such
counterparts shall together constitute a single instrument. The French
and English versions of this agreement shall be equally authoritative.

XVII.

Article 23 of the Agreement is deleted.

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- 22 -

XVIII.

Appendix A to the Agreement is amended by adding thereto the defined
terms set forth in Appendix A hereto. Appendix B to the Agreement is deleted
and replaced by Appendix B attached hereto.

Appendix E to the Agreement is deleted.

XIX.

This Amendment shall be effective when all requisite approvals of the
competent authorities in Algeria, and the United States of America respectively
shall have been obtained. Seller shall use its best efforts to obtain all such
approvals from Algerian authorities, and Buyer shall use its best efforts to
obtain all such approvals from United States authorities. Each party shall
notify the other when it has obtained final such approval from its national
authorities. Each party shall, if requested by the other, help that other by
doing all in its power to obtain any such approvals as may be required for the
performance hereof.

XX.

Pursuant to Article 21 of the Agreement, Seller hereby absolutely and
unconditionally assigns and delegates its rights, obligations and commitments
under the Agreement, as amended, to Sonatrading. Buyer hereby consents to the
assignment by Seller to Sonatrading of Seller's rights, obligations and
commitments under the Agreement, as amended, but nothing herein shall release
Seller from performance of all Seller's obligations and commitments hereunder.

XXI.

All the provisions of the Agreement, except as expressly amended hereby,
shall remain in full force and effect.

Distrigas Corporation SONATRACH

/s/ R. Gordon Shearer /s/ M. Field
------------------- -----------------------
R. Gordon Shearer M. Faid
Vice President Directeur, Division Gaz

Dated: February 21, 1988

62
- 23 -

Sonatrading Amsterdam B.V. is signing this Amendment to acknowledge (i) that it
hereby accepts and assumes all rights, obligations and commitments of Seller
under the Agreement, as amended, and (ii) that it agrees all the clauses and
conditions of the Agreement, as amended, will be binding upon and inure to the
benefit of Sonatrading, its successors and permitted assigns.

Sonatrading Amsterdam B.V.

By /s/
-----------------------

APPENDIX A

"CONTRACTUAL YEAR": The period of time beginning September 15 and ending
the following September 14.

"LIBOR": The average rate of interest per annum (rounded up to the
nearest one sixteenth of one per cent) offered from time to time by prime banks
in the London interbank market for three-month eurodollar deposits in amounts
of $1,000,000, as certified by Citibank N.A. (London).

"MINIMUM PRICE": The minimum price of LNG shall be the price per MMBtu
FOB Algerian port set out below for the periods indicated:

U.S.$

September 15, 1988 - September 14, 1989 1.475

September 15, 1989 - September 14, 1990 1.560

September 15, 1990 - September 14, 1991 1.645

September 15, 1991 - thereafter 1.730

"REFERENCE PRICE": The Reference Price for any month during the period
beginning on each 15th September during the term of this agreement and ending
one year later or when the loading thereafter of nine cargoes comprising minimum
quantities pursuant to section 6.3(a) shall have been

64
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effected, whichever shall be earlier, shall result from the application of the
following formula on the first day of such month:

Reference Price = (i) If RP for such month is
less than $5.00:

Reference Price = .6324 x RP

(ii) If RP for such month is
equal to or greater than
$5.00:
Reference Price =(.6532 x
RP) - .0923

RP = 2.16 x PK + 0.15 x WS + 0.40 x B + 0.15 x CD

where:

PK = the price in U.S. dollars of one gallon of No. 2 distillate
oil measured by adding 75% of the arithmetic average of the
high and low prices of "No. 2 Oil, Max 0.2% Sulfur,
Contract Barges, NY Harbor" for the preceding month, as
published by Platt's Oilgram, to 25% of the arithmetic
average of the high and low prices of "No. 2 Oil, Spot
Cargoes, NY Harbor", for the preceding month, as published
by Platt's Oilgram.

WS = the arithmetic average of the commodity charge for gas in
U.S. dollars per Dth to be delivered to Massachusetts
utilities under the highest three rate schedules chosen
from Algonquin W-l, Conteal F-2, National Fuel-3 and
Boundary, as reported in the gas cost adjustment filings
made by the four gas distribution companies whose projected
purchases are the largest at the Massachusetts Department
of Public Utilities for the heating season (November
through April), and as subsequently adjusted (where
relevant) by filings made by the

65
-3-

interstate pipeline suppliers at the Federal Energy
Regulatory Commission ("FERC") for the subject heating
season.

B = the price in U.S. dollars of No. 6 fuel oil, 0.3% sulfur
grade measured on a Btu basis, by dividing by 6.38 the
total of 70% of the arithmetic average of the average
prices of "No. 6 Fuel Oil, Max 0.3% sulfur, Estimated
Contract Cargo Prices" and 30% of the arithmetic average of
the average prices of "No. 6 Fuel Oil, Max 0.3% Sulfur,
Estimated Spot Cargo Prices" as published by Platt's Oilgram
for the preceding month; less the arithmetic average cost of
transportation per MMBtu as disclosed in filed tariffs or
contracts provided to Seller from time to time which would be
transported from the tailgate of the Terminalling Facility
to such customer or customers in the Northeastern United
States as are capable of substituting natural gas produced
from vaporised LNG for No. 6 fuel oil, 0.3% sulfur grade.

CD = the higher of the Tennessee Gas Pipeline Rate CD-6 or
Algonquin Gas Pipeline Rate F-1 as reported in the gas cost
adjustment filings made by the four gas distribution
companies whose projected purchases are the largest at the
Massachusetts Department of Public Utilities for the period
November through April, and as subsequently adjusted (where
relevant) by filings made by Algonquin and Tennessee at FERC
for the subject period.

Promptly following the end of such period, there shall be calculated (1)
the arithmetic average of the respective Reference Prices for each month of such
period during which a cargo shall have been loaded and (2) the weighted average
of the respective prices P for each such month. If the arithmetic average
Reference Price so calculated shall differ from the weighted average price P so
calculated, the aggregate price receivable by Sonatrading for cargoes shipped
during such period shall be recalculated by repricing all such cargoes at the
higher of such two average prices. Should the aggregate price which shall have
been

66
-4-

paid to Sonatrading in respect of such cargoes prior to such recalculation be
less than the aggregate price so recalculated, the difference shall forthwith
be paid by Buyer to Sonatrading. Should the aggregate price which shall have
been paid to Sonatrading in respect of such cargoes prior to such recalculation
be more than the aggregate price so recalculated, the difference shall
forthwith be paid by Sonatrading to Buyer.

"Tailgate": The tailgate of the Terminalling Facility.
--------

"TERMINALLING FACILITY": The Everett Marine Terminal located at
Everett, Massachusetts.

"TRANSPORTATION AGREEMENT": The Transportation Agreement, dated as of
the date hereof between Buyer and Seller, as amended from time to time.

APPENDIX B

CHARACTERISTICS OF THE COMPONENTS OF NATURAL GAS

AT NORMAL CONDITIONS 0[degree]C/1.01325 BAR

- -------------------------------------------------------------------------------------------------------------------------------

Molecular Molar Molar Density GHV critical critical
Mass Volume GHV kg/Nm3 kcal/Nm3 kcal/kg temperature atmospheric
kg:kgmol NM3/kgmol kcal/kgmol (real gas) [Degree] K pressure
- -------------------------------------------------------------------------------------------------------------------------------

Methane CH4 16.04 22.38 213,280 0.7167 9,530 13,297 190.7 45.80
Ethane C2H6 30.07 22.17 373,786 1.3563 16,860 12,431 305.4 48.20
Propane C3H8 44.09 21.84 531.804 2.0188 24,350 12,062 370.0 42.01
iso-Butane IC4H10 58.12 21.78 687,594 2.6685 31,570 11,831 408.1 36.00
n-Butane nC4H10 58.12 21.50 689,290 2.7033 232,060 11,860 425.2 37.47
iso-Pentane 5IC5H12 72.15 21.03 844,354 3.4308 40,150 11,703 461.0 32.90
n-Pentane nC5H12 72.15 20.86 846,916 3.4588 40,600 11,738 469.8 33.31
Hexane nC6H14 86.20 20.30 1,004,850 4.2463 49,500 11,657 507.9 29.92
Nitrogen N2 28.02 22.40 - 1.2509 - - 126.4 33.53
- -------------------------------------------------------------------------------------------------------------------------------

ANNEX C

Form of
Loading Report Telex
--------------------
___________ Corporation,
__________________,
___________,

Telex No:
Answerback:
Attention: Chief Executive Officer

1. Cargo Number: ________________

2. LNG Cargo Composition

Component Mole Percent
--------- -------------

Methane (C1) ____._______
Ethane (C2) ____._______
Propane (C3) ____._______
Iso-Butane (IC 4) ____._______
N-Butane (NC4) ____._______
Iso-Pentane (IC5) ____._______
N-Pentane (NC5) ____._______
Hexanes Plus (C6+) ____._______
Nitrogen (N2) ____._______

Total ____._______

3. Average Cargo Temperature: ____________ C [degrees]

4. Calculated Density (Klosek &
McKinley): ____________ kg/m3

5. Real Gross Heating Value: ____________ KCAL/nM3

6. Cooldown Volumes: ____________ m3
Cooldown Volumes: ____________ MMBTU

7. Volume on Board at Initial Gauging: ____________ m3

8. Volume on Board at Final Gauging ____________ m3

9. Quantities Loaded: ____________ m3
Quantities Loaded: ____________ MMBTU

Sonatrading Amsterdam B.V.

By ___________________