3 Sets of Diagrams High Level – relationship of a contract to a deal to an invoice in the context of request R18007 Add data for clarity Business Process steps from contracting through invoicing Simple/Basic (aka Happy Path) Management of rejections, corrections, errors and disputs Technical Process Flo Initiator, receiver, observer, security, encryption, software. Overlay of where NAESB standards are located in that flow May include reference to type of standard, purpose,

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates or Responds Initiates or Responds as Buyer or Seller Receive or Delivery gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate or Respond to Invoice Party 2

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 PICK A ROLE to use as an example! Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Initiate Initiates as Buyer Receives gas per terms of Contract + Deal. Daily Respond to Invoice Party 2 Responds and Sells Respond Responds as Seller Delivers gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate Invoice

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Create a Contract Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Initiate Initiates as Buyer Receives gas per terms of Contract + Deal. Daily Respond to Invoice Party 2 Responds and Sells Respond Responds as Seller Delivers gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate Invoice

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Make a Deal Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Initiate Initiates as Buyer Receives gas per terms of Contract + Deal. Daily Respond to Invoice Party 2 Responds and Sells Respond Responds as Seller Delivers gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate Invoice

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Contracting Process in more detail Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Initiate Initiates as Buyer Receives gas per terms of Contract + Deal. Daily Respond to Invoice Party 2 Responds and Sells Respond Responds as Seller Delivers gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate Invoice

Execute 6.3.1 Purchase and Sale Contract between Parties High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Contracting Process in more detail Action Execute 6.3.1 Purchase and Sale Contract between Parties Party 1 Initiates and Buys Initiate – Create Contract Per Discussion Party 2 Responds and Sells Evaluate Information Entered and Respond Disagree and Request Changes Agree and Execute Contract !!

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Deal Transaction in more detail Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Initiate Initiates as Buyer Receives gas per terms of Contract + Deal. Daily Respond to Invoice Party 2 Responds and Sells Respond Responds as Seller Delivers gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate Invoice

Conduct Trade Transaction (Deal) using Contract High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Deal Transaction in more detail Action Conduct Trade Transaction (Deal) using Contract Party 1 Initiates and Buys Transact a Deal 1 Enter Deal Terms per Contract 2 Save and Send to counterparty Party 2 Responds and Sells 3 Receive and Review Deal Terms a. Accept and send Deal Confirmation b. Reject and send Deal Confirmation c. Accept and no Deal Confirmation is required d. Reject without informing counterparty e. I want my system as system of record, so I am sending you a new, original Deal for You to confirm to Me.

Conduct Trade Transaction (Deal) using Contract High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Deal Transaction in more detail Action Conduct Trade Transaction (Deal) using Contract Party 1 Initiates and Buys Transact a Deal 1 Enter Deal Terms per Contract 2 Save and Send to counterparty Party 2 Responds and Sells 3 Receive and Review Deal Terms a. Accept and send Deal Confirmation b. Reject and send Deal Confirmation c. Accept and no Deal Confirmation is required d. Reject without informing counterparty e. I want my system as system of record, so I am sending you a new, original Deal for You to confirm to Me. 4 Import or Enter Terms of Deal into Internal System reject Ready to conduct business on this confirmed deal

Not Part of This Request High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Daily Activity Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Initiate Initiates as Buyer Receives gas per terms of Contract + Deal. Daily Respond to Invoice Party 2 Responds and Sells Respond Responds as Seller Delivers gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate Invoice Not Part of This Request

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Settlement Process in detail Action Execute 6.3.1 Purchase and Sale Contract between Parties Conduct Trade Transaction (Deal) using Contract Gas is delivered using terms and period of Deal Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Initiate Initiates as Buyer Receives gas per terms of Contract + Deal. Daily Respond to Invoice Party 2 Responds and Sells Respond Responds as Seller Delivers gas per terms of Contract + Deal. Daily adjustments per pipeline confirmations and scheduling Initiate Invoice

High Level – Relationship of a contract to a deal to an invoice in the context of request R18007 Look at the Settlement Process in more detail Action Accounting Period Invoice generated for transactions fulfilled during Accounting Period Party 1 Initiates and Buys Import, Review and Reconcile Data Receive Invoice Party 2 Responds and Sells Accept and Pay Dispute: Research, document, modify, partial pay, negotiate Generate and Send Invoice Per terms of contract + deal utilized in current billing period Review Dispute: Issue Revised Invoice (same #) Issue new partial invoice (new #) Send adjustments on next invoice