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Exhibit 99.131

OFFICE OF THE UNITED STATES TRUSTEE


IN RE:				)	DEBTOR IN POSSESSION OPERATING REPORT
				)
SNTL CORPORATION (formerly SUPERIOR NATIONAL INSURANCE GROUP)				)	REPORT NUMBER 19 Page 1 of 3
				)	FOR THE PERIOD FROM: 01-Oct-01
DEBTOR				)	TO: 31-Oct-01
				)
CHAPTER 11 CASE NO. SV00-14099-GM				)
1. Profit and Loss Statement					Please see Attached Schedule A
A. Related to Business Operations:
	Gross Sales

	Less Sales Returns and Discounts

		Net Sales

	Less: Cost of Goods Sold
		Beginning Inventory at Cost

		Add: Purchases

		Less: Ending Inventory at Cost

			Cost of Goods Sold

		Gross Profit

		Other Operating Revenue (Specify)

Less: Operating Expenses
	Officer Compensation

	Salaries & Wages—Other Employees

		Total Salaries & Wages

		Employee Benefits

	Payroll Taxes

	Real Estate Taxes

	Federal and State Income Taxes

		Total Taxes

	Rent and Lease Exp. (Real and Personal Property)

	Interest Expense (Mortgage, Loan, etc.)

	Insurance

	Automobile Expense

	Utilities (Gas, Electric, Water, Telephone, etc.)

	Depreciation and Amortization

	Repairs and Maintenance

	Advertising

	Supplies, Office Expenses, Photocopies, etc.

	Bad Debts

	Miscellaneous Operating Expenses (Specify)

		Total Operating Expenses

	Net Gain/(Loss) from Business Operations

B. Not Related to Business Operations

	Income:
		Interest Income

		Other Non-Operating Revenues (Specify)

		Gross Proceeds on Sale of Assets

		Less: Original Cost of Assets plus Expenses of Sale

			Net Gain/(Loss) on Sale of Assets

		Total Non-Operating Income

	Expenses Not Related to Business Operations:
		Legal and Professional Fees

		Other Non-Operating Revenues (Specify)

			Total Non-Operating Expenses

	NET INCOME /(LOSS) FOR PERIOD

Revised April 1989					OPERATING REPORT UST-4

DEBTOR IN POSSESSION OPERATING REPORT NO. 19

Page 2 of 3

2.: Aging of Accounts Payable and Receivable (exclude pre-petition debt from accounts payable):

		Accounts Payable		Accounts Receivable
Current	Under 30 days	$	0	$	0
Overdue	31 - 60 days	$	0	$	0
Overdue	61 - 90 days		PLEASE SEE ATTACHED SCHEDULE B
Overdue	91 - 120 days	$	0	$	0
Overdue	121 + days	$	0	$	0
Total		$	0	$	0

3.: Statement of Status of Payments to Secured Creditors and Lessors:

				Post-Petition Payments Not Made
	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Post-Petition Payments Not Made
Creditor/Lessor	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Number	Amount
	NONE

4.: Tax Liability:


Gross Payroll Expense For Period		$371,304
Gross Sales for Period Subject to Sales Tax		$0

	Date Paid	Amount Paid *	Post Petition Taxes Still Owing
Federal Payroll and Withholding Taxes	10/15/01 & 10/31/01	$95,493	0
State Payroll and Withholding Taxes	10/15/01 & 10/31/01	$23,655	0
State Sales and Use Tax	N/A	$0	N/A
Real Property Taxes	N/A	$0	N/A

ALL PAYROLL TAXES PAID BY ADP

* Attach photocopies of depository receipts from taxing authority or financial institution to verify that such deposits or payments have been made.

5.: Insurance Coverage

		Carrier/ Agent		Amount of Coverage		Policy Exp. Date		Premium Paid Thru Date
Worker's Compensation		See Schedule D
Liability		See Schedule E
Fire and Extended Coverage		See Schedule E
Property		See Schedule E
Theft		See Schedule E
Life (Beneficiary: )		See Schedule E
Vehicle		See Schedule E
Other		See Schedule E

DEBTOR IN POSSESSION OPERATING REPORT NO. 19

Page 3 of 3

6.

Questions:

A.: Has the Debtor provided to any officers, directors, shareholders, or other principals compensation without the approval of the Office of the United States Trustee?

/ /: Yes Explain:

/x/: No

B.: Has the Debtor, subsequent to the filing of the petition made any payments on its pre-petition unsecured debt, except as have been authorized by the Court?

/ /: Yes Explain:

/x/: No

7.: Statement of Unpaid Professional Fees (Post-Petition Only):

Name of Professional		Type Professional		Post-Petition Unpaid Total
See Schedule F

8.: Narrative Report of Significant Events And Events Out Of The Ordinary Course Of Business:
9.: Quarterly Fees: (This Fee must be paid to the United States Trustee every calendar quarter)

Quarterly Period Ending		Quarterly Disbursements for Quarter			Quarterly Fee			Date Paid		Amount Paid			Check No.		Quarterly Fee Still Owing
9/30/2001		$	907,100.00		$	3,750.00		10/22/2001		$	3,750.00		1217		$	0.00

I, Alex Corbett—Chief Financial Officer, declare under penalty of perjury that the information contained in the above Debtor in Possession Operating Report is true and complete to the best of my knowledge.

Dated: 12/06/2001 Signed: /s/ ALEX CORBETT

SCHEDULE A

SNTL, SNTLHC, SNIA and SNIS
Schedule of Operations
One Month ended October 31, 2001
[Bankruptcy filed April 26, 2001]
[unaudited]

(In thousands)		SNTL (formerly SNIG)			SNTLHC (formerly BIG)			SNIA			SNIS			Elimination		Consolidated Total
Revenues:
Commission income		$	—		$	—		$	—		$	(19	)	$	—	$	(19	)
Net investment income			4			2			1			25			—		32

	*Total Revenues*		4			2			1			6			—		13

Expenses:
Interest expense			719			—			—			—			—		719
Bad debt expense			—			—			—	(A)		(23	)(A)		—		(23	)
General and administrative
	Other		(414	)		1			200			924			—		711

	*Total Expenses*		305			1			200			901			—		1,407

	*Income (loss) before income taxes and preferred securities dividends and accretion*		(301	)		1			(199	)		(895	)		—		(1,394	)
Income tax (benefit) expense			2	(B)		—			3	(B)		195	(B)		—		200

	*Income (loss) before preferred securities dividends and accretion*		(303	)		1			(202	)		(1,090	)		—		(1,594	)
Preferred securities dividends and accretion			(1,143	)		—			—			—			—		(1,143	)
Expenses not related to business operations:
	Legal and Professional Fees		(203	)		—			—			—			—		(203	)
	Other non-operating expenses		(3	)		—			—			(8	)		—		(11	)

			(1,652	)		1			(202	)		(1,098	)		—		(2,951	)
Equity in net income (loss) from subsidiaries			(1,302	)		(1,303	)		—			—			2,602		(3	)

	*Net (Loss) Income*	$	(2,954	)	$	(1,302	)	$	(202	)	$	(1,098	)	$	2,602	$	(2,954	)

(A): Amount reflects a recording of an allowance for bad debt on collection of commissions receivable. Debtor continues to assert rights of offset and other methods to effectuate collection.
(B): All amount reflect tax expense associated with the payment of taxes to various state tax authorities.

SCHEDULE B

SNTL Corporation and Subsidiaries in Bankruptcy
Aging of Accounts Payable and Receivable
As of October 31, 2001

SNTL Corporation
(formerly Superior National Insurance Group)

		Non-Intercompany Accounts					Intercompany Accounts
		Accounts Payable		Accounts Receivable			Accounts Payable		Accounts Receivable
Current	Under 30 days		875,791		—			—		711,738
Overdue	31—60 days		300,000		—			—		119,929
Overdue	61—90 days		10,658		—			—		36,560
Overdue	91—120 days		524,224		—			—		132,828
Overdue	121 + days		480,351		144,553			5,237,080		1,461,683	(D)

Total		$	2,191,025	$	144,553	[A]	$	5,237,080	$	2,462,739

SNTL Holdings Corporation
(formerly Business Insurance Group)

		Non-Intercompany Accounts				Intercompany Accounts
		Accounts Payable		Accounts Receivable		Accounts Payable		Accounts Receivable
Current	Under 30 days		—		—		—		—
Overdue	31—60 days		—		—		—		—
Overdue	61—90 days		—		—		—		—
Overdue	91—120 days		—		—		—		—
Overdue	121 + days		—		601,265		22,000		20,200,934	(D)

Total		$	—	$	601,265	$	22,000	$	20,200,934

Superior National Insurance Services

		Non-Intercompany Accounts						Intercompany Accounts
		Accounts Payable			Accounts Receivable			Accounts Payable			Accounts Receivable
Current	Under 30 days		242,753			(0	)		560,909			2,811
Overdue	31—60 days		0			(0	)		(0	)		885
Overdue	61—90 days		(0	)		0			0			885
Overdue	91—120 days		(0	)		(0	)		0			2,811
Overdue	121 + days		36,455			21,401,664			(0	)		739,258

Total		$	279,208		$	21,401,664	[B]	$	560,909		$	746,652

Superior National Insurance Administrators

		Non-Intercompany Accounts						Intercompany Accounts
		Accounts Payable			Accounts Receivable			Accounts Payable		Accounts Receivable
Current	Under 30 days		91,494			—			153,641		—
Overdue	31—60 days		—			—			120,815		—
Overdue	61—90 days		—			—			37,446		—
Overdue	91—120 days		(0	)		—			135,639		—
Overdue	121 + days		—			7,175,421			1,850,878		98,383

Total		$	91,494		$	7,175,421	[C]	$	2,298,419	$	98,383

Consolidated

		Non-Intercompany Accounts					Intercompany Accounts
		Accounts Payable		Accounts Receivable			Accounts Payable		Accounts Receivable
Current	Under 30 days		1,210,038		(0	)		714,550		714,550
Overdue	31—60 days		300,000		(0	)		120,815		120,815
Overdue	61—90 days		10,658		0			37,446		37,446
Overdue	91—120 days		524,224		(0	)		135,640		135,640
Overdue	121 + days		516,806		29,322,903			7,109,958		22,500,258

Total		$	2,561,726	$	29,322,903		$	8,118,408	$	23,508,708

[A]: Amounts in accounts payable do not include interest due and accrued on bank loan and Trust Preferred Securities.
[B]: Amounts shown in accounts receivable do not include recorded amounts on allowance for bad debt on collection of commissions receivable, in which the Debtor continues to assert rights of offset and other methods to effectuate collection. Also, reflects prior period adjustment recorded in September 2001.
[C]: Amounts shown in accounts receivable do not include recorded amounts on allowance for bad debt on collection of claims administration fee, in which the Debtor continues to assert rights of offset and other methods to effectuate collection. Also, reflects prior period adjustment recorded in September 2001.
[D]: Amounts include a payment of $5.4 million pursuant to an Order Authorizing Release of Escrowed Funds to the Bank Group Pursuant to Stipulation dated November 9, 2000. The $5.4 million was paid from BIG for interest expense accrued on SNIG.

SCHEDULE C
OCTOBER 31, 2001

SNTL (formerly SNIG)

3.: Statement of Status of Payments to Secured Creditors and Lessors:

				Post-Petition Payments Not Made
	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Post-Petition Payments Not Made
Creditor/Lessor	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Number	Amount
NONE

Amounts above do not include bank loan in default, which are partially secured by stock of Superior National Insurance Group, Inc. and its subsidiaries.

SNTLHC (formerly BIG)

3.: Statement of Status of Payments to Secured Creditors and Lessors:

				Post-Petition Payments Not Made
	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Post-Petition Payments Not Made
Creditor/Lessor	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Number	Amount
NONE

Amounts above do not include bank loan in default, which are partially secured by stock of Superior National Insurance Group, Inc. and its subsidiaries.

SNIA

3.: Statement of Status of Payments to Secured Creditors and Lessors:

				Post-Petition Payments Not Made
	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Post-Petition Payments Not Made
Creditor/Lessor	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Number	Amount
NONE

Amounts above do not include bank loan in default, which are partially secured by stock of Superior National Insurance Group, Inc. and its subsidiaries.

SNIS

3.: Statement of Status of Payments to Secured Creditors and Lessors:

				Post-Petition Payments Not Made
	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Post-Petition Payments Not Made
Creditor/Lessor	Frequency of Payments per Lease/Contract	Amount of Each Payment	Next Payment Due	Number	Amount
NONE

Amounts above do not include bank loan in default, which are partially secured by stock of Superior National Insurance Group, Inc. and its subsidiaries.

SCHEDULE D

SNTL Corporation and Subsidiaries in Bankruptcy
Debtor in Possession
Insurance Coverage
As of October 31, 2001

State	Carrier	Agent	Amount of Coverage	Policy Exp. Date	Premium Paid Thru Date
Arizona	Liberty Mutual Group	Di Buduo & De Fendis Insurance Group	Statutory	12-Jul-02	12-Jul-02
California	State Compensation Insurance Fund	Hogan Insurance	Statutory	01-Jun-02	01-Dec-01
Colorado	Pinnacol Assurance	Di Buduo & De Fendis Insurance Group	Statutory	01-Jun-02	01-Jun-02
Illinois	Liberty Mutual Group	Di Buduo & De Fendis Insurance Group	Statutory	12-Jul-02	12-Jul-02
Kansas	Liberty Mutual Group	Di Buduo & De Fendis Insurance Group	Statutory	11-Aug-02	11-Aug-02
Missouri	Travelers Property & Casualty	Di Buduo & De Fendis Insurance Group	Statutory	02-Jun-02	02-Jun-02
New Jersey	Granite State Insurance Company	Di Buduo & De Fendis Insurance Group	Statutory	02-Jun-02	02-Jun-02
New York	The State Insurance Fund (N.Y.)	Hogan Insurance	Statutory	01-Jun-02	01-Jun-02
Oklahoma	First American Insurance Company	IRAA (MGA)	Statutory	15-Nov-02	15-Nov-02
Pennsylvania	State Workmens' Insurance Fund	Di Buduo & De Fendis Insurance Group	Statutory	03-Jun-02	03-Jun-02
Texas	Texas Mutual	Hogan Insurance	Statutory	15-Nov-02	15-Nov-02
Virginia	Liberty Mutual Group	Di Buduo & De Fendis Insurance Group	Statutory	11-Aug-02	11-Aug-02


Note 1:		Within all of the policies identified above the following entities are covered for Workers' Comp.: SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIA, and SNIS.
Note 2:		A Virginia employee was added to the Kansas policy
Note 3:		The AZ, ILL policy was renewed and the AR & GA states were removed

October 31, 2001 Company	Agent	Type of Insurance	Amount of Coverage	Policy Exp. Date	SCHEDULE E Premium paid thru date
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	Hogan Insurance	Commercial General Liability Package General Liability Advertising Injury Employee Benefit Liability	$1 million per occurrence $2 million aggregate excluded $1 million per claim $1 million aggregate	12/1/2001	12/1/2001 Binder
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	Hogan Insurance	Automobile (non-owned) Liability Physical Damage/Comp/Collision	$1 million $30,000 $100 deductible comp/ $250 collision	12/1/2001	12/1/2001 Binder
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	Carpenter Moore	Directors & Officers (run-off) Hartford Lloyd's of London Gulf Insurance Company Executive Risk Indeminity Philadelphia Indemnity	$5,000,000 $5,000,000 xs $5,000,000 $10,000,000 xs $10,000,000 $10,000,000 xs $20,000,000 $10,000,000 xs $30,000,000	5/1/2003	5/1/2003
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	DiBudio & DeFendis	Employment Practice Liability (run off) *Extended reporting period*	$1 million per loss & in the aggregate	12/10/2001	12/10/2001
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	DiBudio & DeFendis	Employment Practice Liability	$1 million per loss & in the aggregate	1/15/2002	1/15/2002
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	DiBudio & DeFendis	Fiduciary Liability (run off)	$5 million per loss & in the aggregate	12/10/2001	12/10/2001
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	Hogan Insurance	Commercial Umbrella Evanston Insurance Company	$10 million per occurrence $10 million aggregate	12/1/2001	12/1/2001 Binder
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	Hogan Insurance	Excess Liability	$10 million per occurrence $10 million aggregate	12/20/2001	12/20/2001 Binder
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	DiBudio & DeFendis	Accident Policy (Life/Travel) AIG	$1 million to $3 million (depends on rank of officer)	1/15/2002	1/15/2002
SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, & SNIA	Andreini & Co	Accident Policy (Trip/Travel) Hartford	$500,000 $1.5 million aggregate (single accident)	12/31/2001	12/31/2001
SNTL CORP & Sub's	Hogan Insurance	Professional Liability—(Binder) Indian Harbor Insurance	$1 million per occurrence $1 million aggregate	12/8/2001	12/8/2001 Binder
BIG only	DiBudio & DeFendis	Professional Liability Run Off *BIG companies only/acts b/f 12-10-99 $500,000 deductible	$10 million per loss & in the aggregate	12/10/2004	12/10/2004

SCHEDULE F
October 31, 2001

SNTL (formerly SNIG), SNTLHC (formerly BIG), SNIS, SNIA

Name of Professional	Type Professional	Post-Petition Unpaid Total
Paul, Weiss, Rifkind, Wharton & Garrison	Legal fees	$	119,913	Note C
Latham & Watkins	Counsel for Official Committee of Unsecured Creditors	$	205,340	Note C
Steve Eldrige	Tax consulting	$	8,858
Quinn Emanuel Urquhart Oliver & Hedges LLP	Special litigation counsel	$	709,243	Note C & F
Tharpe & Howell	Legal fees	$	1,251
Mannat Phelps	Legal fees	$	70,012	Note C
KPMG Peat Marwick	Audit & consulting fees	$	288,746	Note C
Christopher Maisel	Facilitator fees	$	—	Note A
Riordan & McKinzie	Corporate counsel	$	95,470	Note B, C & F
Pachulski, Stang, Ziehl, Young & Jones LLP	General bankruptcy counsel	$	109,244	Note C & E
Miller, Herbers, Lehmann & Assoc.	Legal fees	$	6,808	Note C

Note A—Fees & expenses from 3/1/01 to 10/31/01 are unknown.

Note B—SNIG has a retainer with Riordan & McKinzie. Retainer balance as of 10/31/01 is $689,721.91.

Note C—Amount includes 20% hold back on professional fees sanctioned by the Bankruptcy Court.

Note D—Amount represents fees & expenses through October 31, 2001.

Note E—Amount represents fees & expenses through May 31, 2001.

Note F—Amount represents fees & expenses through September 30, 2001.

QuickLinks

Exhibit 99.131

SNTL, SNTLHC, SNIA and SNIS Schedule of Operations One Month ended October 31, 2001 [Bankruptcy filed April 26, 2001] [unaudited]

SUPERIOR NATIONAL INSURANCE GROUP INC 8-K