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About U.S. Natural Gas Pipelines - Transporting Natural Gas           
 based on data through 2007/2008 with selected updates


Thirty Largest U.S. Interstate Natural Gas Pipeline Systems, 2008
(Ranked by system capacity)

Pipeline Name

Market Regions Served

Primary Supply Regions

States in Which Pipeline Operates

Transported in 2007 (million dekatherm)1

System Capacity (MMcf/d) 2

System Mileage

Columbia Gas Transmission Co.

Northeast

Southwest, Appalachia

DE, PA, MD, KY, NC, NJ, NY, OH, VA, WV

1,849

9,350

10,365

Transcontinental Gas Pipeline Co.

Northeast, Southeast

Southwest

AL, GA, LA, MD, MS, NC, NY, SC, TX, VA, GM

2,670

8,466

10,450

Northern Natural Gas Co.

Central, Midwest

Southwest

IA, IL, KS, NE, NM, OK, SD, TX, WI, GM

1,055

7,442

15,874

Texas Eastern Transmission Corp.

Northeast

Southwest

AL, AR, IL, IN, KS, KY, LA, MI, MO, MS, NJ, NY, OH, OK, PA, TX, WV, GM

1,438

7,332

9,212

ANR Pipeline Co.

Midwest

Southwest

AR, IA, IL, IN, KS, KY, LA, MI, MO, MS, NE, OH, OK, WI, GM

2,044

7,129

10,600

Tennessee Gas Pipeline Co.

Northeast, Midwest

Southwest,      Canada

AR, KY, LA, MA, NY, OH, PA, TN, TX, WV, GM

1,801

6,686

14,463

Dominion Transmission Co.

Northeast

Southwest, Appalachia

PA, MD, NY, OH, VA, WV

621

6,655

3,505

Gulf South Pipeline Co.

Southeast, Southwest

Southwest

AL, FL, LA, MS, TX, GM

676

6,260

6,886

El Paso Natural Gas Co.

Western, Southwest

Southwest

AZ, CO, NM, TX

1,638

6,182

10,302

Centerpoint Gas Transmission Co.

Southwest

Southwest

AR, KS, LA, OK, TX

960

5,385

6,374

Northwest Pipeline Corp.

Western

Canada, Central

CO, ID, OR, UT, WA, WY

812

4,950

3,880

Natural Gas Pipeline Co. of America

Midwest

Southwest

AR, IA, IL, KS, LA, MO, NE, OK, TX, GM

1,783

4,848

9,306

Colorado Interstate Gas Co.

Central

Central, Southwest

CO, KS, OK, TX, WY

854

4,099

4,143

Texas Gas Transmission Corp.

Midwest

Southwest

AR, IN, KY, LA, MS, OH, TN

784

4,065

5,671

Southern Natural Gas Co.

Southeast

Southwest

AL, GA, LA, MS, SC, TN, TX, GM

867

3,967

7,635

Algonquin Gas Transmission Co.

Northeast

Southwest

CT, MA, NJ, NY, RI

366

3,347

1,128

Questar Pipeline Co.

Central

Central

CO, UT, WY

408

3,192

1,858

Trunkline Gas Co.

Midwest Southeast

Southwest

AR, IL, IN, KY, LA, MS, TN, TX, GM

646

3,025

4,202

Great Lakes Gas Transmission Co.

Midwest

Canada

MI, MN, WI

833

2,958

2,115

Panhandle Eastern Pipeline Co.

Midwest

Southwest

IL, IN, KS, MI, MO, OH, OK, TX

662

2,840

6,445

Southern Star Central Pipeline Co.

Central

Central

CO, KS, MO, NE, OK, TX, WY

318

2,801

5,803

Wyoming Interstate Gas Co.

Central

Central

CO, WY

756

2,736

848

Gas Transmission Northwest Corp.

Western

Canada

ID, OR, WA

838

2,636

1,356

Northern Border Pipeline Co.

Midwest, Central

Canada

 IA, IL, IN, MN, MT, ND, SD

886

2,626

1,400

Transwestern Gas Co. Western

Southwest, Central

AZ, CO, NM, TX
645
2,439
2,387

Columbia Gulf Transmission Co.

Southeast, Northeast

Southwest

KY, LA, MS, TN, GM

1,113

2,386

4,124

National Fuel Gas Supply Co.

Northeast

Canada, Appalachia

NY, PA

307

2,312

1,481

Florida Gas Transmission Co.

Southeast

Southwest

AL, FL, LA, MS, TX, GM

750

2,217

4,889

Alliance Pipeline Co. (US)

Midwest

Canada

ND, MN, IA, IL

632

2,053

888

Kern River Gas Transmission Co.

Western

Central

CA, NV, UT, WY

826

1,833

1,680

Sub-total 

 

 

 

29,838

132,217

169,270

Other Interstate Systems

- -

- -

- -

6,868

50,673

48,036

Total 

 

 

 

36,706

182,890

217,306

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1 This figure, found on Line 19 of Gas Accounts in FERC Form 2, Page 520, represents throughput "transported for others" only. It does not include natural gas transported in association with gathering, distribution, or storage operations.

2 Capacity levels are reported to FERC in Btu, dekatherms, or volumetric units. For this presentation, reported capacity figures are presented as volumetric (MMcf/d = million cubic feet per day) assuming a conversion factor of 1 MMcf/d = 1 MDth/d (thousand dekatherms per day) = 1 Bbtu/d (billion btus per day).   

Note: GM = Gulf of Mexico.

Source: Federal Energy Regulatory Commission (FERC), Capacity: FERC Annual Peak Day Capacity Report Section 284.13(d); Mileage & Transport: FERC Form 2 & 2A "Major and Non-major Natural Gas Pipeline Annual Report," 2007, adjusted for natural gas pipeline projects completed in 2008, as found in the Energy Information Administration, Natural Gas Transportation Information System, Natural Gas Pipeline Projects Database, as of December 31, 2008.