# EDGAR Filing Document

**Accession Number:** 0000099250
**File Stem:** 0001193125-25-267482
**Filing Date:** 2025-11
**Character Count:** 11670
**Document Hash:** 60cf7b28266b8418ad118fd02d29dbc3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-267482.hdr.sgml**: 20251106

**ACCESSION NUMBER**: 0001193125-25-267482

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 16

**CONFORMED PERIOD OF REPORT**: 20251105

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20251106

**DATE AS OF CHANGE**: 20251105

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC
- **CENTRAL INDEX KEY:** 0000099250
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS TRANSMISSION [4922]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 741079400
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-07584
- **FILM NUMBER:** 251455551

**BUSINESS ADDRESS:**
- **STREET 1:** 2800 POST OAK BLVD
- **STREET 2:** PO BOX 1396
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77251
- **BUSINESS PHONE:** 7132152000

**MAIL ADDRESS:**
- **STREET 1:** 2800 POST OAK BLVD
- **STREET 2:** PO BOX 1396
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77251

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** TRANSCONTINENTAL GAS PIPE LINE CORP
- **DATE OF NAME CHANGE:** 19920703

?xml version='1.0' encoding='ASCII'? 8-K

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM 8-K

#### CURRENT REPORT

#### PURSUANT TO SECTION 13 OR 15 (d)

#### OF THE SECURITIES EXCHANGE ACT OF 1934

#### Date of report (Date of earliest event reported): November 5, 2025

## TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-7584** | **74-1079400** |
| **(State or Other Jurisdiction<br>of Incorporation)** | **(Commission**<br> **File Number)** | **(I.R.S. Employer<br>Identification No.)** |

---

---

| | |
|:---|:---|
| **2800 Post Oak Boulevard, Houston, Texas** | **77056** |
| **(Address of Principal Executive Offices)** | **(Zip Code)** |

---

(713) 215-2000

#### (Registrant's telephone number, including area code)

#### Not Applicable

#### (Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act: None

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

------

---

| | |
|:---|:---|
| **Item 8.01.** | **Other Events.**  |

---

On November 5, 2025, Transcontinental Gas Pipe Line Company, LLC (the "Company") issued a press release announcing that it intends to offer, pursuant to an exemption from registration under the Securities Act of 1933, as amended, senior notes to certain institutional investors. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Also on November 5, 2025, the Company issued a press release announcing that it has priced its offering of $1.0 billion in aggregate principal amount of 5.100% Senior Notes due 2036 and $700.0 million in aggregate principal amount of 5.750% Senior Notes due 2056. The offering of the notes is expected to close on November 20, 2025, subject to certain closing conditions. A copy of the press release is attached hereto as Exhibit 99.2 and is incorporated herein by reference.

---

| | |
|:---|:---|
| **Item 9.01.** | **Financial Statements and Exhibits**  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) *Exhibits.*

---

| | |
|:---|:---|
| **Exhibit<br>No.** | **Description** |
| 99.1 | [Press release dated November 5, 2025.](d231538dex991.htm) |
| 99.2 | [Press release dated November 5, 2025.](d231538dex992.htm) |
| 104 | Cover Page Interactive Data File. The cover page XBRL tags are embedded within the inline XBRL document (contained in Exhibit 101). |

---

------

#### SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | |
|:---|:---|
| TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC | TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC |
| By: | /s/ Robert E. Riley, Jr. |
|  | Robert E. Riley, Jr. |
|  | Secretary |

---

DATED: November 5, 2025

## Exhibit 99.1

**Exhibit 99.1** 

---

| | | |
|:---|:---|:---|
| ![LOGO](g231538g1105232843104.jpg) | Williams (NYSE: WMB) <br> One Williams Center <br> Tulsa, OK 74172 <br> 800-Williams <br> www.williams.com  | ![LOGO](g231538g1105232842994.jpg) |

---

**DATE:** November 5, 2025

**Williams' Transco Initiates Private Debt Issuance** 

TULSA, Okla. – Transcontinental Gas Pipe Line Company, LLC ("Transco"), a wholly owned subsidiary of Williams (NYSE: WMB), announced today that it is offering senior notes to certain institutional investors. The notes will be offered pursuant to certain exemptions from registration under the Securities Act of 1933, as amended (the "Securities Act").

Transco intends to use the net proceeds from the offering to fund the redemption of all $1.0 billion aggregate principal amount of its 7.850% Senior Notes due 2026 and to pay associated fees and expenses. Any excess net proceeds will be used for general corporate purposes, which may include the repayment of other near-term debt maturities.

The offering of the notes has not been registered under the Securities Act or applicable state securities laws. The notes may not be offered or sold in the United States absent registration or an applicable exemption from such registration requirements.

This press release is for informational purposes only and does not constitute an offer to sell or a solicitation of an offer to buy the notes described in this press release, nor shall there be any sale of the notes in any state or jurisdiction in which such an offer, sale or solicitation would be unlawful prior to registration or qualification under the securities laws of such jurisdiction. Any offer of the notes will be made only by means of a private offering memorandum.

**About Williams** 

Williams (NYSE: WMB) is a trusted energy industry leader committed to safely, reliably and responsibly meeting growing energy demand. We use our infrastructure to deliver one third of the nation's natural gas to where it's needed most, supplying the energy used to heat our homes, cook our food and generate low-carbon electricity. For over a century, we've been driven by a passion for doing things the right way. Today, our team of problem solvers is leading the charge into the clean energy future

*Portions of this document may constitute "forward-looking statements" as defined by federal law. Although Transco believes any such statements are based on reasonable assumptions, there is no assurance that actual outcomes will not be materially different. Additional information about issues that could lead to material changes in performance is contained in Transco's annual and quarterly reports filed with the Securities and Exchange Commission.* 

**MEDIA:** 

<u>media@williams.com</u>

(800) 945-8723

**INVESTOR CONTACTS:** 

Danilo Juvane

(918) 573-5075

Caroline Sardella

(918) 230-9992

###

## Exhibit 99.2

**Exhibit 99.2** 

---

| | | |
|:---|:---|:---|
| ![LOGO](g231538g1105232843104.jpg) | Williams (NYSE: WMB) <br> One Williams Center <br> Tulsa, OK 74172 <br> 800-Williams <br> www.williams.com  | ![LOGO](g231538g1105232842994.jpg) |

---

**DATE:** November 5, 2025

**Williams' Transco Prices Private Debt Issuance** 

TULSA, Okla. – Transcontinental Gas Pipe Line Company, LLC ("Transco"), a wholly owned subsidiary of Williams (NYSE: WMB), announced that it has priced its previously announced offering of senior notes.

The $1.0 billion in aggregate principal amount of senior notes due 2036 were priced with a 5.100 percent coupon and at an offering price of 99.936 percent of par, with a yield to investors of 5.109 percent. The $700.0 million in aggregate principal amount of senior notes due 2056 were priced with a 5.750 percent coupon and at an offering price of 99.413 percent of par, with a yield to investors of 5.792 percent. Each series of notes is scheduled to be delivered on November 20, 2025, subject to the satisfaction of customary closing conditions.

Transco intends to use the net proceeds from the offering to fund the redemption of all $1.0 billion aggregate principal amount of its 7.850% Senior Notes due 2026 and to pay associated fees and expenses. Any excess net proceeds will be used for general corporate purposes, which may include the repayment of other near-term debt maturities.

The notes will be offered pursuant to certain exemptions from registration under the Securities Act of 1933, as amended (the "Securities Act"). The offering of the notes has not been registered under the Securities Act or applicable state securities laws. The notes may not be offered or sold in the United States absent registration or an applicable exemption from such registration requirements.

This press release is for informational purposes only and does not constitute an offer to sell or a solicitation of an offer to buy the notes described in this press release, nor shall there be any sale of the notes in any state or jurisdiction in which such an offer, sale or solicitation would be unlawful prior to registration or qualification under the securities laws of such jurisdiction. Any offer of the notes will be made only by means of a private offering memorandum.

**About Williams** 

Williams (NYSE: WMB) is a trusted energy industry leader committed to safely, reliably and responsibly meeting growing energy demand. We use our infrastructure to deliver one third of the nation's natural gas to where it's needed most, supplying the energy used to heat our homes, cook our food and generate low-carbon electricity. For over a century, we've been driven by a passion for doing things the right way. Today, our team of problem solvers is leading the charge into the clean energy future.

*Portions of this document may constitute "forward-looking statements" as defined by federal law. Although Transco believes any such statements are based on reasonable assumptions, there is no assurance that actual outcomes will not be materially different. Additional information about issues that could lead to material changes in performance is contained in Transco's annual and quarterly reports filed with the Securities and Exchange Commission.* 

**MEDIA:** 

<u>media@williams.com</u>

(800) 945-8723

**INVESTOR CONTACTS:** 

Danilo Juvane

(918) 573-5075

Caroline Sardella

(918) 230-9992

###