COMMONWEALTH EDISON CO Contracts & Agreements

Underwriting Agreement dated March 8, 2022 between ComEd and BNP Paribas Securities Corp., Morgan Stanley & Co. LLC, SMBC Nikko Securities America, Inc., and U.S. Bancorp... (Filed With SEC on March 16, 2022)

Supplemental Indenture dated as of February 23, 2022, from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D.G. Donovan, as co-trustee (Filed With SEC on March 16, 2022)

Underwriting Agreement dated March 8, 2022 between ComEd and BNP Paribas Securities Corp., Morgan Stanley & Co. LLC, SMBC Nikko Securities America, Inc., and U.S. Bancorp... (Filed With SEC on March 15, 2022)

Supplemental Indenture dated as of February 23, 2022, from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D.G. Donovan, as co-trustee (Filed With SEC on March 15, 2022)

Underwriting Agreement dated August 5, 2021, between ComEd and BNP Paribas Securities Corp., BofA Securities, Inc., U.S. Bancorp Investments, Inc. and Wells Fargo Securities, LLC,... (Filed With SEC on August 12, 2021)

Supplemental Indenture dated as of August 2, 2021, from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D. G. Donovan, as co-trustee (Filed With SEC on August 12, 2021)

Underwriting Agreement dated March 2, 2021, between ComEd and Citigroup Global Markets Inc., MUFG Securities Americas Inc., U.S. Bancorp Investments, Inc. and Wells Fargo... (Filed With SEC on March 9, 2021)

Supplemental Indenture dated as of February 16, 2021, from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D. G. Donovan, as co-trustee (Filed With SEC on March 9, 2021)

Deferred Prosecution Agreement, dated July 17, 2020, between Commonwealth Edison Company and the U.S. Department of Justice and the U.S. Attorney for the Northern District of... (Filed With SEC on July 17, 2020)

Underwriting Agreement dated February 18, 2020 between ComEd and BNP Paribas Securities Corp., BofA Securities, Inc., Citigroup Global Markets Inc., and MUFG Securities Americas... (Filed With SEC on February 25, 2020)

Supplemental Indenture dated as of February 10, 2020 from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D. G. Donovan, as co-trustee (Filed With SEC on February 25, 2020)

Underwriting Agreement dated November 4, 2019 between ComEd and Credit Suisse Securities (USA) LLC, PNC Capital Markets LLC and TD Securities (USA) LLC, as representatives of the... (Filed With SEC on November 12, 2019)

Supplemental Indenture dated as of October 29, 2019 from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D. G. Donovan, as co-trustee (Filed With SEC on November 12, 2019)

Underwriting Agreement dated February 11, 2019 between ComEd and Barclays Capital Inc., MUFG Securities Americas Inc. and U.S. Bancorp Investments, Inc., as representatives of the... (Filed With SEC on February 19, 2019)

Supplemental Indenture dated as of February 7, 2019 from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D. G. Donovan, as co-trustee (Filed With SEC on February 19, 2019)

Underwriting Agreement dated August 7, 2018 between ComEd and BNP Paribas Securities Corp., Citigroup Global Markets Inc., Goldman Sachs & Co. LLC and U.S. Bancorp Investments,... (Filed With SEC on August 14, 2018)

Supplemental Indenture dated as of July 26, 2018 from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D. G. Donovan, as co-trustee (Filed With SEC on August 14, 2018)

Underwriting Agreement dated February 12, 2018 between ComEd and Barclays Capital Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated and Scotia Capital (USA) Inc., as... (Filed With SEC on February 20, 2018)

Supplemental Indenture dated as of February 6, 2018 from ComEd to BNY Mellon Trust Company of Illinois, as trustee, and D. G. Donovan, as co-trustee (Filed With SEC on February 20, 2018)

Commonwealth Edison Company First Mortgage 2.950% Bonds, Series 122, due 2027 First Mortgage 3.750% Bonds, Series 123, due 2047 UNDERWRITING AGREEMENT (Filed With SEC on August 23, 2017)

SUPPLEMENTAL INDENTURE Dated as of August 9, 2017 COMMONWEALTH EDISON COMPANY to BNY MELLON TRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on August 23, 2017)

Commonwealth Edison Company First Mortgage 2.550% Bonds, Series 120, due 2026 First Mortgage 3.650% Bonds, Series 121, due 2046 UNDERWRITING AGREEMENT (Filed With SEC on June 27, 2016)

SUPPLEMENTALINDENTURE Dated as of June 15, 2016 COMMONWEALTH EDISON COMPANY to BNY MELLONTRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923, and... (Filed With SEC on June 27, 2016)

Commonwealth Edison Company First Mortgage 4.350% Bonds, Series 119, due 2045 UNDERWRITING AGREEMENT (Filed With SEC on November 19, 2015)

SUPPLEMENTALINDENTURE Dated as of November 4, 2015 COMMONWEALTH EDISON COMPANY to BNY MELLONTRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on November 19, 2015)

Commonwealth Edison Company First Mortgage 3.70% Bonds, Series 118, due 2045 UNDERWRITING AGREEMENT (Filed With SEC on March 2, 2015)

SUPPLEMENTALINDENTURE Dated as of February 18, 2015 COMMONWEALTH EDISON COMPANY to BNY MELLONTRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on March 2, 2015)

Commonwealth Edison Company First Mortgage 3.10% Bonds, Series 117, due 2024 UNDERWRITING AGREEMENT (Filed With SEC on November 12, 2014)

SUPPLEMENTALINDENTURE Dated as of October 28, 2014 COMMONWEALTH EDISON COMPANY to BNY MELLONTRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on November 12, 2014)

Commonwealth Edison Company First Mortgage 2.150% Bonds, Series 115, due 2019 First Mortgage 4.700% Bonds, Series 116, due 2044 UNDERWRITING AGREEMENT (Filed With SEC on January 10, 2014)

SUPPLEMENTAL INDENTURE Dated as of January 2, 2014 COMMONWEALTH EDISON COMPANY to BNY MELLONTRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on January 10, 2014)

Commonwealth Edison Company First Mortgage 4.60% Bonds, Series 114, due 2043 UNDERWRITING AGREEMENT (Filed With SEC on August 19, 2013)

SUPPLEMENTAL INDENTURE Dated as of August 1, 2013 COMMONWEALTH EDISON COMPANY to BNYMELLON TRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on August 19, 2013)

Commonwealth Edison Company First Mortgage 3.800% Bonds, Series 113, due 2042 UNDERWRITING AGREEMENT (Filed With SEC on October 1, 2012)

SUPPLEMENTAL INDENTURE Dated as of September 17, 2012 COMMONWEALTH EDISON COMPANY to BNY MELLON TRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1,... (Filed With SEC on October 1, 2012)

Commonwealth Edison Company First Mortgage 1.95% Bonds, Series 111, due 2016 First Mortgage 3.40% Bonds, Series 112, due 2021 UNDERWRITING AGREEMENT (Filed With SEC on September 7, 2011)

SUPPLEMENTALINDENTURE Dated as of August 22, 2011 COMMONWEALTH EDISON COMPANY to BNYMELLON TRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on September 7, 2011)

Commonwealth Edison Company First Mortgage 1.625% Bonds, Series 110, due 2014 UNDERWRITING AGREEMENT (Filed With SEC on January 18, 2011)

SUPPLEMENTALINDENTURE Dated as of January 4, 2011 COMMONWEALTH EDISON COMPANY to BNYMELLON TRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on January 18, 2011)

Commonwealth Edison Company First Mortgage 4.00% Bonds, Series 109, due 2020 UNDERWRITING AGREEMENT (Filed With SEC on August 2, 2010)

SUPPLEMENTAL INDENTURE Dated as of July 12, 2010 COMMONWEALTH EDISON COMPANY to BNYMELLON TRUST COMPANY OF ILLINOIS and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923,... (Filed With SEC on August 2, 2010)

SUPPLEMENTALINDENTURE Dated as of June 12, 2008 COMMONWEALTH EDISON COMPANY to BNY MIDWEST TRUST COMPANY and D.G. DONOVAN (Filed With SEC on June 27, 2008)

FIRST AMENDMENT TO LETTER OF CREDIT AND REIMBURSEMENT AGREEMENT (Filed With SEC on June 27, 2008)

BY AND BETWEEN (Filed With SEC on June 27, 2008)

SUPPLEMENTAL INDENTURE Dated as of April 23,2008 COMMONWEALTH EDISON COMPANY to BNY MIDWEST TRUST COMPANY and D.G. DONOVAN Trustees Under Mortgage Dated July 1, 1923, and Certain... (Filed With SEC on May 12, 2008)

BYAND BETWEEN ILLINOIS FINANCE AUTHORITY AND COMMONWEALTH EDISON COMPANY (Filed With SEC on May 12, 2008)

LETTER OF CREDIT AND REIMBURSEMENT AGREEMENT (Filed With SEC on May 12, 2008)

AMENDMENT NO. 1 TO CREDIT AGREEMENT (Filed With SEC on May 12, 2008)

Commonwealth Edison Company First Mortgage 5.80% Bonds, Series 108, due 2018 (Filed With SEC on March 27, 2008)

SUPPLEMENTAL INDENTURE Dated as of March 10, 2008 (Filed With SEC on March 27, 2008)

Commonwealth Edison Company First Mortgage 6.45% Bonds, Series 107, due 2038 (Filed With SEC on January 16, 2008)

SUPPLEMENTALINDENTURE Dated as of December 20, 2007 COMMONWEALTH EDISON COMPANY to BNY MIDWEST TRUST COMPANY and D.G. DONOVAN (Filed With SEC on January 16, 2008)

Commonwealth Edison Company First Mortgage 6.15% Bonds, Series 106, due 2017 (Filed With SEC on September 11, 2007)

SUPPLEMENTALINDENTURE Dated as of August 30, 2007 COMMONWEALTH EDISON COMPANY to BNY MIDWEST TRUST COMPANY and D.G. DONOVAN (Filed With SEC on September 11, 2007)

Commonwealth Edison Company (Filed With SEC on March 23, 2007)

Supplemental Indenture Dated as of March 1, 2007 Commonwealth Edison Company to BNY Midwest Trust Company and D.G. Donovan Trustees Under Mortgage Dated July 1, 1923, and Certain... (Filed With SEC on March 23, 2007)

Commonwealth Edison Company (Filed With SEC on December 20, 2006)

WITNESSETH: (Filed With SEC on December 20, 2006)

Commonwealth Edison Company First Mortgage 5.95% Bonds, Series 104, due 2016 UNDERWRITING AGREEMENT (Filed With SEC on October 2, 2006)

W I T N E S S E T H: (Filed With SEC on October 2, 2006)

Commonwealth Edison Company (Filed With SEC on August 28, 2006)

Supplemental Indenture Dated as of August 1, 2006 Commonwealth Edison Company to BNY Midwest Trust Company and D.G. Donovan Trustees Under Mortgage Dated July 1, 1923, and Certain... (Filed With SEC on August 28, 2006)

Underwriting Agreement (Filed With SEC on March 7, 2006)

Supplemental Indenture (Filed With SEC on March 7, 2006)

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COMMONWEALTH EDISON CO Contracts & Agreements