<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url><loc>https://stock.noler.com/us/stock/vts</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/13f-holdings</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/accounts-payable</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/accounts-receivable</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/accrued-liabilities-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/accrued-professional-fees-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/activist-13d-13g</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/additional-paid-in-capital</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/adjustments-related-to-tax-withholding-for-share-based-compensation</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/allocated-share-based-compensation-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/amended-reports-10-k</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/amortization-of-financing-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/analyst-ratings-buy</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/analyst-ratings-hold</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/analyst-ratings-no-rating</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/analyst-ratings-sell</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/asset-retirement-obligation</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/asset-retirement-obligation-accretion-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/asset-retirement-obligation-liabilities-incurred</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/asset-retirement-obligation-revision-of-estimate</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/asset-retirement-obligations-noncurrent</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/auditor</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/basic-shares</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/business</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/business-acquisition-cost-of-acquired-entity-transaction-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/business-acquisitions-pro-forma-income-loss-from-before-changes-in-accounting-and-extraordinary-items-net-of-tax</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/business-acquisitions-pro-forma-revenue</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/buyback-authorization</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/buybacks-share-repurchases</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/buybacks-shares-repurchased</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/buybacks-shares-repurchased-value</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/capital-expenditures-incurred-but-not-yet-paid</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/cash</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/cash-and-equivalents</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/cash-and-restricted-cash</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/cash-equivalents-at-carrying-value</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/cash-flow-breakdown</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/clinical-trials</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/common-stock-capital-shares-reserved-for-future-issuance</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/common-stock-par-or-stated-value-per-share</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/common-stock-value</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/common-unit-authorized</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/common-unit-issuance-value</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/common-unit-issued</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/common-unit-outstanding</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/company-guidance</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/company-profile</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/concept-stock-issued-tag-2</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/congressional-trades-stocks-including-adrs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/contract-liability</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/convertible-securities-retired</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/costs-incurred-acquisition-of-oil-and-gas-properties</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/costs-incurred-development-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/costs-incurred-oil-and-gas-property-acquisition-exploration-and-development-activities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/cover-page-shares-outstanding</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/current-assets</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/current-federal-tax-expense-benefit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/current-income-tax-expense-benefit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/current-liabilities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/current-ratio</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/current-state-and-local-tax-expense-benefit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/debt-equity-ratio</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-compensation-share-based-arrangements-liability-classified-noncurrent</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-federal-income-tax-expense-benefit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-income-tax-expense-benefit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-income-tax-liabilities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-income-tax-liabilities-net</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-state-and-local-income-tax-expense-benefit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-assets-gross</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-assets-operating-loss-carryforwards</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-assets-other</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-assets-stock-compensation</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-assets-tax-deferred-expense-reserves-and-accruals-asset-retirement-obligations</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-assets-valuation-allowance</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-liabilities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-liabilities-derivatives</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/deferred-tax-liabilities-leasing-arrangements</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/depletion-of-oil-and-gas-properties</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/derivative-assets-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/derivative-assets-noncurrent</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/derivative-liabilities-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/derivative-liabilities-noncurrent</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/diluted-shares</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/dividend</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/dividend-safety</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/dividends-common-stock</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/dividends-common-stock-stock</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/dividends-paid</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/dividends-payable-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/dividends-per-share</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/ebitda</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/ebitda-margin</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/effective-tax-rate</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/employee-count</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/employee-related-liabilities-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/eps</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/eps-basic</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/executive-pay-pvp</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/executive-salary-officers</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/expense-breakdown</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/extensions-discoveries-additions-and-improved-recovery-less-related-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/financing-cash-flow</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/foreign-pretax-income</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/form-144-stocks</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/form-n-port-stocks</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/future-net-cash-flows-relating-to-proved-oil-and-gas-reserves-cash-inflows</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/future-net-cash-flows-relating-to-proved-oil-and-gas-reserves-development-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/future-net-cash-flows-relating-to-proved-oil-and-gas-reserves-income-tax-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/future-net-cash-flows-relating-to-proved-oil-and-gas-reserves-net-cash-flows</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/future-net-cash-flows-relating-to-proved-oil-and-gas-reserves-production-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/future-net-cash-flows-relating-to-proved-oil-and-gas-reserves-ten-percent-annual-discount-for-estimated-timing-of-cash-flows</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/gain-loss-on-derivative-instruments-net-pretax</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/general-and-administrative-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/graph</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/gross-margin</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/impairment-of-oil-and-gas-properties</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/included-in-etf</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/income-tax</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/income-tax-at-federal-statutory-rate</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/income-tax-paid-federal-after-refund-received</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/income-taxes-paid</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-decrease-in-accounts-payable</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-decrease-in-accounts-receivable</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-decrease-in-accrued-liabilities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-decrease-in-estimated-future-development-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-decrease-in-future-income-tax-expense-estimates-on-future-cash-flows-related-to-proved-oil-and-gas-reserves</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-decrease-in-other-operating-assets</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-decrease-in-prepaid-deferred-expense-and-other-assets</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/increase-due-to-purchases-of-minerals-in-place</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/insider-transactions</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/interest-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/interest-expense-nonoperating</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/interest-paid-net</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/investing-cash-flow</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/iran-activity-notices-irannotice</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/late-filing-notices-nt-10-k</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/legal-settlement-proceeds</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/lessee-operating-lease-discount-rate</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/lessee-operating-lease-liability-undiscounted-excess-amount</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/long-term-line-of-credit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/market-cap</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/material-contracts</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/members-equity</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/net-change-in-cash</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/net-fee-amt</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/net-income</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/net-income-loss-available-to-common-stockholders-basic</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/net-income-loss-available-to-common-stockholders-diluted</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/net-increase-decrease-in-sales-and-transfer-prices-and-production-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/net-margin</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/news</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/oil-and-gas-property-successful-effort-method-accumulated-depreciation-depletion-amortization-and-impairment</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/oil-and-gas-property-successful-effort-method-net</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-cash-flow</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-expenses</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-income</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-assets</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-liability</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-payments-due</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-payments-due-after-year-five</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-payments-due-next-twelve-months</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-payments-due-year-five</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-payments-due-year-four</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-payments-due-year-three</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-lease-payments-due-year-two</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/operating-margin</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/options-activity</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/other-accrued-liabilities-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/other-assets-miscellaneous-noncurrent</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/other-current-liabilities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/other-income</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/other-noncurrent-assets</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/other-noncurrent-liabilities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/other-nonoperating-income-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/outstanding-bonds</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/paid-in-capital-dividends-in-excess-of-retained-earnings</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/paid-in-capital-share-based-compensation-stock-options-requisite-service-period-recognition</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/patents-active</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/payments-for-proceeds-from-other-investing-activities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/payments-of-debt-issuance-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/payments-of-distributions-to-affiliates</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/payments-of-stock-issuance-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/payments-to-acquire-oil-and-gas-property</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/payments-to-acquire-other-property-plant-and-equipment</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/payments-to-explore-and-develop-oil-and-gas-properties</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/pb-ratio</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/pe-ratio</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/pre-tax-margin</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/preferred-shares-facts</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/preferred-stock-par-or-stated-value-per-share</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/preferred-stock-shares-authorized</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/preferred-stock-shares-issued</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/preferred-stock-shares-outstanding</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/preferred-stock-value</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/prepaid-expense-and-other-assets-current</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/pretax-income</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/pretax-income-domestic</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/previous-etf-holding-it</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/previously-estimated-development-costs-incurred</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/price-fcf-ratio</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proceeds-from-long-term-lines-of-credit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proceeds-from-sale-of-oil-and-gas-property-and-equipment</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/production-tax-expense</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/profit-breakdown</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/property-plant-equipment</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-developed-and-undeveloped-reserve-extension-and-discovery-energy</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-developed-and-undeveloped-reserve-net-energy</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-developed-and-undeveloped-reserve-production-energy</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-developed-and-undeveloped-reserve-purchase-of-mineral-in-place-energy</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-developed-and-undeveloped-reserve-revision-of-previous-estimate-energy</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-developed-reserves-boe</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-oil-and-gas-property-successful-effort-method</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/proved-undeveloped-reserve-boe</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/ps-ratio</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/public-float</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/quick-ratio</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/repayments-of-long-term-lines-of-credit</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/results-of-operations-depreciation-depletion-amortization-and-accretion</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/results-of-operations-production-or-lifting-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/retained-earnings</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/return-on-tangible-equity</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/revenue</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/revenue-breakdown</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/revisions-of-previous-quantity-estimates</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/roa</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/roe</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/roi</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sales-and-transfers-of-oil-and-gas-produced-net-of-production-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/scorecard</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sec-comment-letters-upload</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sec-enforcement-actions</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sec-filings-10-q</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sec-filings-25-nse</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sec-filings-8-k</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sec-filings-px14a6g</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/sec-filings-s-4</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/secondary-offerings</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/settlement-of-asset-retirement-obligations-through-noncash-payments-amount</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/severance-costs</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/shareholders-equity</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/shares-authorized</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/shares-issued</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/shares-outstanding</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/short-sale-volume</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/standardized-measure-of-discounted-future-net-cash-flow-of-proved-oil-and-gas-reserves-other</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/standardized-measure-of-discounted-future-net-cash-flow-relating-to-proved-oil-and-gas-reserves-accretion-of-discount</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/standardized-measure-of-discounted-future-net-cash-flows-relating-to-proved-oil-and-gas-reserves</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-based-compensation</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-issued-shares-issued-value-conversion-of-convertible-securities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-issued-shares-issued-value-restricted-stock-award-forfeitures</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-issued-shares-issued-value-restricted-stock-award-net-of-forfeitures</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-issued-value-of-shares-issued-for-acquisitions</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-issued-value-of-shares-issued-for-stock-awards</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-repurchase-program-authorized-amount</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/stock-splits</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/subsidiaries</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-rate-reconciliation-at-federal-statutory-income-tax-rate</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-rate-reconciliation-change-in-deferred-tax-assets-valuation-allowance</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-rate-reconciliation-foreign-income-tax-rate-differential</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-rate-reconciliation-nondeductible-expense-depreciation-and-amortization</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-rate-reconciliation-nondeductible-expense-share-based-compensation-cost</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-rate-reconciliation-other-adjustments</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-rate-reconciliation-state-and-local-income-taxes</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-reconciliation-change-in-deferred-tax-assets-valuation-allowance</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-reconciliation-foreign-income-tax-rate-differential</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-reconciliation-nondeductible-expense-depreciation-and-amortization</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-reconciliation-nondeductible-expense-share-based-compensation-cost</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-reconciliation-other-adjustments</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-reconciliation-state-and-local-income-taxes</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/tax-withholding-on-stock-awards</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/temporary-equity-carrying-amount-attributable-to-parent</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/temporary-equity-net-income</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/temporary-equity-shares-authorized</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/temporary-equity-shares-issued</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/temporary-equity-shares-outstanding</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/total-assets</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/total-liabilities</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/total-liabilities-and-equity</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/ttl-fee-amt</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/ttl-offering-amt</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/ttl-offset-amt</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/ttl-prevsly-pd-amt</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/undistributed-earnings-loss-allocated-to-participating-securities-basic</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/undistributed-earnings-loss-allocated-to-participating-securities-diluted</loc></url>
<url><loc>https://stock.noler.com/us/stock/vts/unrealized-gain-loss-on-derivatives</loc></url>
</urlset>
