AMENDMENT TO APPENDIX “B” TO DECISION AND ORDER BOARD FILE NO. EB-2005-0524 DATED DECEMBER 21, 2005

(1)

AMENDMENT TO APPENDIX “B” TO DECISION AND ORDER BOARD FILE NO. EB-2005-0524

DATED DECEMBER 21, 2005

(2)

Rate 1 System Notice January 2006 January 2006

Residential Customers - Rate 1 (System customers) Natural gas prices have increased

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply and Delivery Charge effective January 1, 2006. The effect on your bill will depend on how much gas you use. For a typical residential customer, these changes will result in an increase of approximately $257

annually, excluding the Gas Cost Adjustment and the one-time Rate Adjustment refund.

Gas Supply Charge

Due to higher natural gas prices, the Gas Supply Charge will increase to 43.1228 cents per cubic metre ("¢/m³") from 35.3252 ¢/m³. This price is based on a forecast of market prices for the next twelve months. The forecast price is reviewed every three months and, if necessary, adjusted accordingly to reflect market changes. If our forecasts are over or under our actual costs, we

reimburse or collect from customers through gas cost adjustments.

Enbridge Gas Distribution does not make a profit on the cost of natural gas. The price we charge is the same as our cost to purchase natural gas.

Gas Cost Adjustment

The OEB has approved a new Gas Cost Adjustment refund of 1.9301¢/m³ for the period January 1, 2006 through December 31, 2006.

Delivery Charge

The Delivery Charge has increased mainly due to higher commodity-related costs for the coming year. These include the costs of storing natural gas and ensuring that there is enough natural gas in the distribution system to meet the needs of all customers The increase will amount to approximately $18 for a typical customer per year.

Rate Adjustment

The OEB has approved a one-time year-end Rate Adjustment refund that will amount to approximately $10 for a typical residential customer. The refund will appear on your January bill.

The one-time refund is for gas used from October 1, 2004 to September 30, 2005 and is the result of a difference between the actual costs incurred and the amount you paid over this period.

Residential Rates

Your current bill has been calculated using the new approved rates for gas used from January 1, 2006 as identified below. The annualized impact is based on a typical residential heating and water heating customer who uses 3,064 cubic metres per year.

(3)

Rate 1 System Notice January 2006

MONTHLY CHARGES MONTHLY RATES

January 1, 2006

ANNUALIZED IMPACT

Increase/(Decrease)

Customer Charge $11.25 No change

Gas Supply Charge 43.1228 ¢/m³ $239

Delivery Charge

Amount of gas used per month in cubic metres (m³)

First 30 Next 55 Next 85 Over 170

15.3626 ¢/m³ 14.7455 ¢/m³ 14.2619 ¢/m³ 13.9019 ¢/m³

$18

ADDITIONAL ITEMS MONTHLY RATES IMPACT

Gas Cost Adjustment (January 1– December 31, 2006)

(1.9301) ¢/m³ ($59)

Rate Adjustment $(10)

Enbridge Gas Distribution provides safe, reliable delivery of natural gas. For more information about Enbridge Gas Distribution rates, call 1-800-263-2212 or visit www.enbridge.com/gas.

*Note: Late Payment Charge

Enbridge Gas Distribution charges are due when you receive your bill, which is considered to be three days after the bill is rendered. A late payment charge of 1.5 per cent (1.5%) of all of your unpaid Enbridge Gas Distribution charges, including all applicable federal and provincial taxes, is applied to your account on the 17^th day following the date the bill is due.

(4)

New Rate Information January 2006

Residential Customers - Rate 1 (ABC-T customers) Natural gas prices have increased

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Delivery Charge effective January 1, 2006. The effect on your bill will depend on how much gas you use. For a typical residential customer, these changes will result in an increase of approximately $18 annually, excluding the one-time Rate Adjustment.

The price you pay for the natural gas you use, shown as the Gas Supply Charge on your bill, depends on the terms of your agreement with your gas marketer.

Delivery Charge

The Delivery Charge has increased due to higher commodity-related costs for the coming year. These include the costs of storing natural gas and ensuring that there is enough natural gas in the distribution system to meet the needs of all customers The increase will amount to approximately $18 for a typical customer per year.

Rate Adjustment

The OEB has approved a one-time year-end Rate Adjustment that will amount to a charge of approximately $2.50 for a typical residential customer. The charge will appear on your January bill.

The one-time charge is for gas used from October 1, 2004 to September 30, 2005. It reflects the difference between the actual costs incurred and the amount you paid over this period to transport gas from Western Canada.

Residential Rates

Your current bill has been calculated using the new approved rates for gas used from January 1, 2006 as identified below. The annualized impact is based on a typical residential heating and water heating customer who uses 3,064 cubic metres per year.

January 1, 2006

ANNUALIZED IMPACT

Increase/(Decrease)

Customer Charge $11.25 No change

Gas Supply Charge Your price is based on your contract with your marketer.

Delivery Charge

First 30 Next 55 Next 85 Over 170

15.3626 ¢/m³ 14.7455 ¢/m³ 14.2619 ¢/m³ 13.9019 ¢/m³

$18

Rate 1 ABC-T Notice January 2006

(5)

Rate Adjustment $2.50

(6)

Rate 6 System Notice January 2006 January 2006

Commercial and Industrial Customers - Rate 6 (System customers) Natural gas prices have increased

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply and Delivery Charge effective January 1, 2006. The effect on your bill will depend on how much gas you use. For a typical

commercial and industrial heating customer, these changes will result in an increase of approximately $1,900 annually, excluding the Gas Cost Adjustment and the one-time Rate Adjustment refund.

Due to higher natural gas prices, the Gas Supply Charge will increase to 43.2323 cents per cubic metre ("¢/m³") from 35.4347 ¢/m³. This price is based on a forecast of market prices for the next twelve months. The forecast price is reviewed every three months and, if necessary, adjusted accordingly to reflect market changes. If our forecasts are over or under our actual costs, we

reimburse or collect from customers through gas cost adjustments.

The OEB has approved a new Gas Cost Adjustment refund of 2.2484¢/m³ for the period January 1, 2006 through December 31, 2006.

Delivery Charge

The Delivery Charge has increased mainly due to higher commodity-related costs for the coming year. These include the costs of storing natural gas and ensuring that there is enough natural gas in the distribution system to meet the needs of all customers The increase will amount to approximately $138 for a typical customer per year.

Rate Adjustment

The OEB has approved a one-time year-end Rate Adjustment refund that will amount to approximately $90 for a typical commercial and industrial customer.

The refund will appear on your January bill.

The one-time refund is for gas used from October 1, 2004 to September 30, 2005 and is the result of a difference between the actual costs incurred and the

amount you paid over this period.

Commercial and Industrial Rates

The current bill has been calculated using the new approved rates for gas used from January 1, 2006 as identified below. The annualized impact is based on a typical commercial and industrial heating and water customer who uses 22,606 cubic metres per year.

(7)

Rate 6 System Notice January 2006

January 1, 2006

ANNUALIZED IMPACT

Increase/(Decrease)

Customer Charge $22.00 No Change

Gas Supply Charge 43.2323 ¢/m³ $1762

Delivery Charge

First 500 Next 1,050 Next 4,500 Next 7,000 Next 15,250 Over 28,300

14.5209 ¢/m³ 12.4872 ¢/m³ 11.0635 ¢/m³ 10.1484 ¢/m³ 9.7416 ¢/m³ 9.6399 ¢/m³

$138

Gas Cost Adjustment (January 1 to December 31,2006)

(2.2484) ¢/m³ $(508)

Rate Adjustment $(90)

Enbridge Gas Distribution provides safe, reliable delivery of natural gas. For more information about Enbridge Gas Distribution rates, call 1-800-263-2212 or visit www.enbridge.com/gas.

(8)

January 2006

Commercial and Industrial Customers - Rate 6 (ABC-T customers) Natural gas prices have increased

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Delivery Charge effective January 1, 2006. The effect on your bill will depend on how much gas you use. For a typical commercial and industrial customer, these changes will result in an increase of approximately $138 annually, excluding the one-time Rate Adjustment.

Delivery Charge

The Delivery Charge has increased mainly due to higher commodity-related costs for the coming year. These include the costs of storing natural gas and ensuring that there is enough natural gas in the distribution system to meet the needs of all customers. The increase will amount to approximately $138 for a typical customer per year.

Rate Adjustment

The OEB has approved a one-time year-end Rate Adjustment that will amount to a charge of approximately $12 for a typical commercial and industrial customer.

The charge will appear on your January bill.

Commercial and Industrial Rates

Your current bill has been calculated using the new approved rates for gas used from January 1, 2006 as identified below. The annualized impact is based on a typical commercial and industrial heating and water heating customer who uses 22,606 cubic metres per year.

January 1, 2006

ANNUALIZED IMPACT

Increase/(Decrease)

Customer Charge $22.00 No Change

Gas Supply Charge Your price is based on your contract with your marketer.

Delivery Charge

First 500 Next 1,050 Next 4,500 Next 7,000 Next 15,250

14.5209 ¢/m³ 12.4872 ¢/m³ 11.0635 ¢/m³ 10.1484 ¢/m³ 9.7416 ¢/m³

$138

(9)

Over 28,300 9.6399 ¢/m

Rate Adjustment $12

(10)

January 2006

Container Service Customer Notice - Rate 9 Natural gas prices have increased

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas

Distribution’s Gas Supply and Delivery Charge effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 16.9% annually, excluding the Gas Cost Adjustment and the one-time Rate Adjustment.

Your current bill has been calculated using the new approved rates for gas consumed from January 1, 2006 onwards. The rates are on the reverse side of this notice.

Due to higher natural gas prices, the Gas Supply Charge has increased to 42.9974 cents per cubic metre ("¢/m³") from 35.1998 ¢/m³. This price is based on a forecast of market prices for the next twelve months. The forecast price is reviewed every three months and, if necessary, adjusted accordingly to reflect market changes. If our forecasts are over or under, we reimburse or collect from customers through gas cost adjustments.

The OEB has approved a new Gas Cost Adjustment charge of 3.5137 ¢/m³ for the period January 1, 2006 through December 31, 2006.

Delivery Charge

The Delivery Charge has increased mainly due to higher commodity-related costs for the coming year. These include the costs of storing natural gas and ensuring that there is enough natural gas in the distribution system to meet the needs of all customers.

Rate Adjustment

The OEB has approved a one-time Rate Adjustment charge of 1.3501 ¢/m³, which will appear on your January bill.

The one-time charge is for gas used from October 1, 2004 to September 30, 2005 and is a result of a difference between the actual costs incurred and the amount you paid over this period.

For further information

Enbridge Gas Distribution appreciates the opportunity to serve you and looks forward to the continuation of our business relationship. If you require further information with

LV Container Service - Rate 9 January 2006

(11)

respect to this rate change, please call your Enbridge office. The telephone number is located on the front of your bill. Also, visit our website at: www.enbridge.com/gas

LV Container Service - Rate 9 January 2006

(12)

January 2006

Transportation Service Customer Notice - Rate 9 Natural gas prices have increased

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas

Distribution’s Delivery Charge effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 3.0% annually, excluding the one-time Rate Adjustment.

Delivery Charge

The Delivery Charge has increased mainly due to higher commodity-related costs for the coming year. These include the costs of storing natural gas and ensuring that there is enough natural gas in the distribution system to meet the needs of all customers.

Rate Adjustment

The OEB has approved a one-time Rate Adjustment charge of 0.2401 ¢/m³ for Western Bundled Transportation Service customers. The charge will appear on your January bill.

Enbridge Gas Distribution appreciates the opportunity to serve you and looks forward to the continuation of our business relationship. If you require further information with respect to this rate change, please call your Enbridge office. The telephone number is located on the front of your bill. Also, visit our website at: www.enbridge.com/gas

LV T- Service - Rate 9 January 2006

(13)

Large Volume Customer Notice - Rate 100 Natural gas prices have increased

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply Charge and the Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 19% annually, excluding the Gas Cost Adjustment and the one-time Rate Adjustment refund.

The OEB has approved a new Gas Cost Adjustment refund of 0.8468 ¢/m³ for the period January 1, 2006 through December 31, 2006.

Delivery and Load Balancing Charges

The Delivery Charge has increased mainly due to higher commodity-related costs that increase the cost of gas losses on the storage and distribution systems. The Load

Balancing Charge has increased partially due to higher carrying costs of gas in inventory.

The higher carrying costs of gas in inventory are due to the increase in the natural gas commodity prices since they affect the value of the gas in storage.

Rate Adjustment

The OEB has approved a one-time Rate Adjustment refund of 0.2127 ¢/m³, which will appear on your January bill.

The one-time refund is for gas used from October 1, 2004 to September 30, 2005 and is a result of a difference between the actual costs incurred and the amount you paid over this period.

LV System Service – Rate 100 January 2006

(14)

the continuation of our business relationship. If you require further information with respect to this rate change, please call your Enbridge office. The telephone number is located on the front of your bill. Also, visit our website at: www.enbridge.com/gas

(15)

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 6% annually, excluding the one-time Rate

Adjustment.

Rate Adjustment

The OEB has approved a one-time Rate Adjustment charge of 0.0620 ¢/m³ for Western Bundled Transportation Service customers and a one-time Rate Adjustment charge of 0.0140¢/m³ for Ontario Bundled Transportation Service customers. The charge will appear on your January bill.

LV T-Service – Rate 100 January 2006

(16)

January 2006

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply Charge and the Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 20% annually, excluding the Gas Cost Adjustment and the one-time Rate Adjustment.

Rate Adjustment

(17)

(18)

January 2006

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 8% annually, excluding the one-time Rate

Adjustment refund.

Rate Adjustment

The OEB has approved a one-time Rate Adjustment refund of 0.0032 ¢/m³ for Western Bundled Transportation Service customers and a one-time Rate Adjustment refund of 0.0512¢/m³ for Ontario Bundled Transportation Service customers. The refund will appear on your January bill.

The one-time refund is for gas used from October 1, 2004 to September 30, 2005. It reflects the difference between the actual costs incurred and the amount you paid over this period to transport gas from Western Canada.

(19)

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply Charge and the Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 20.8%

Rate Adjustment

(20)

(21)

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 9.9% annually, excluding the one-time Rate Adjustment refund.

Rate Adjustment

(22)

January 2006

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply Charge and the Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 21.2%

Rate Adjustment

(23)

(24)

January 2006

Rate Adjustment

(25)

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply Charge and the Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 20% annually, excluding the Gas Cost Adjustment and the one-time Rate Adjustment refund.

The OEB has approved a new Gas Cost Adjustment refund of 1.1702 ¢/m³ for the period January 1, 2006 through December 31, 2006.

The higher carrying costs of gas in inventory are due to the increase in the natural gas commodity prices sine they affect the value of the gas in storage.

Rate Adjustment

(26)

(27)

Rate Adjustment

(28)

January 2006

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Gas Supply Charge and the Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 22% annually, excluding the Gas Cost Adjustment and the one-time Rate Adjustment.

Rate Adjustment

(29)

(30)

January 2006

The Ontario Energy Board (“OEB”) has approved an increase to Enbridge Gas Distribution’s Delivery and Load Balancing Charges effective January 1, 2006. The effect on your bill will depend on how much gas your organization uses. On average, the increase will amount to approximately 16.3% annually, excluding the one-time Rate Adjustment.

Rate Adjustment

The OEB has approved a one-time Rate Adjustment charge of 0.0069 ¢/m³ for Western Bundled Transportation Service customers and a one-time Rate Adjustment refund of 0.0411¢/m³ for Ontario Bundled Transportation Service customers. The adjustment will appear on your January bill.

The one-time adjustment is for gas used from October 1, 2004 to September 30, 2005. It reflects the difference between the actual costs incurred and the amount you paid over this period to transport gas from Western Canada.